This article also explains the importance of making a good portfolio/showreel. It also seems that making and keeping good professional contacts is really important. As expected being a freelancers is risky.

"Before going out to start showcasing your work as a freelance animator, you will need to build a portfolio. Your portfolio should contain all of your very best work. This will be what prospective clients will look at before hiring you. If you can, purchase a domain name, and put your portfolio on your own professional website. This will allow people to find your work quickly and easily.

Make some professional contacts. Get involved in the animation industry. Go to trade shows, interact on websites, and get to know a few successful freelance animators. These contacts could become the key to your success as a freelancer. Let people know what services you can provide, and that you are looking for work.

Finding work is the most challenging part of starting a career in freelance animation. There are a lot of freelance animators also looking for work. There are several websites that help freelancers find clients looking for work, often for a fee. Another option is to directly contact companies, and offer them your services, a method that works best after you have some experience. Depending on your location, attending local business showcases may also help you to find clients.

Freelance animation is an exciting career, but it is risky. Even the best freelancers may go several months between jobs. It is important to keep promoting yourself, even when you are in the middle of another project, because eventually the project will end and you will need to have other work lined up. Someone who has a lot of determination, can self-motivate, and enjoys being his or her own boss has a very good chance of being successful in freelance animation."

I contacted Peter Dodd with a few simple questions about working as a freelance animator. He works as a 2D animator, but much of this also applies to 3D animation. Here is his answers to the questions:

1: How do you get into the freelancing successfully?

First of all- Ring HM Customs and Revenue to declare that you are self employed- 

HELPLINE FOR THE NEWLY SELF EMPLOYED- 084591 54515

Then gather some contacts- Look at the Imagine animation directory and contact all the studios that interest you. Freelancing is basically a hired hand, so the key is just to get yurself hired and get enough companies that will hire you. Which means making yourself useful to each one so that they hire you again and again. Once this happens a few times, you'll have the beginnings of a cv and a reputation. Then keep updating your demo reel.

2: Where is it easiest to get a job as a newly started freelancer?

It depends what you do. Try everywhere- luck, opportunism and circumstances have a lot to do with it too. A lot of people get a foot in the door by being a runner. A lot of studios have runners. The theory is, and I have seen it happen, that when a job needs some extra hands, if you're lucky, they pull you out of the ranks to help out. But make contacts with studios- some will even write back. Some will even offer advice or leads perhaps. 

3: How important is a good contract with the employee and what should you include in them?

A good contract you say? As in a written one at the beginning of each job? You don't write them, or have any control in them as far as I'm aware. You are, or should be, given one by them, which you both sign. Make sure you read it though. But usually it's fairly smple- you sign over copyright of what you do to them. Be careful what you do with your work afterwards. Usually,, after the project is finished and released, you have the right to use your work for your demo reel, but not always. 

4: What is normally the lenght of freelancers contract?

My length of contract usually varies between a few days to around 2 months. 3 weeks is quite normal.

5: What is the normal pricing in the UK for a new freelancer, and an experience one?

I'm not too sure about this. I imagine, but this is pure speculation that in London a beginner may get £100-150 per day, and after some time may be able to get £200-250.  Depending on skill and genre. Ask a few opinions on this. I have heard of people getting a lot more and a lot less, but I can't verify those. Bigger studios usually pay more, and bigger projects have bigger budgets. Usually it pays to be a bit flexible.

These questions all gave me answers to a few quesions I was unable to find a good answer to on the internet. The info about pricing, contracts and registering with the HM customs are all really helpfull.

This article contains useful tips for working effectively from my own house. It is important to separate work from the rest of your life, especially when working as a freelancer and this article talks about that.

"When you work from home, sometimes it’s very hard to separate “at work” from “at home” – meaning that you also don’t get the relief of “going home from work”. In fact, work may well start to intrude on your personal life, until it feels like you’re always at the computer, always working, rarely stopping for anything other than sleep.

This may work well for you for a short period, especially if you love what you do – but if your freelance work is starting to affect your personal life and you just can’t seem to get a handle on your time, you may want to try to a few of these tips. I had to start following my own advice not too long ago, when my partner remarked that I never eat breakfast away from the computer anymore. My family and friends were both grateful when I introduced more balance between work and home, and my productivity when I did schedule time for work increased exponentially.

Keep your workspace separate from the rest of your home.
It’s temping – especially if you have a laptop – to work out on the patio, on the sofa, even in bed. Sometimes I work from my balcony for a break, especially on a clear, cool early morning. The key is not to make a habit of it, or the entire world will become your office and you won’t ever be able to leave work. Convenience can at times become a hindrance, and add to personal stress when you can’t ever leave the “at work” mentality. It becomes hard to know when to stop.

Keep a separate room, or even just a niche in one corner of a room, as your work area; keep your computer there, your art supplies, and any other work-related materials. When you leave your work area, leave your supplies there. If you use your computer for entertainment as well, then keep your fun time strictly separated from your work time.

Mark your deadlines, and plan for them.
Very few of your clients will say “oh, just get it to me when you’re done, no hurry”. Most will give you a set date to deliver the goods, and it’s either too close for comfort or so far away that you’ll grow lax and forgetful until the last minute. (Personal experience talking? Never!)

To make sure that you’re not scrambling to finish a project in marathon 24-hour stints without sleep or any nourishment beyond coffee, make sure to mark your deadlines on a project calendar, plan out how many total hours it will take to complete each project, and budget a certain number of hours a day to work on each project. Prioritize; adjust your schedule blocks based on the deadline proximity.

Keep a schedule, and adhere to it.
When you work a nine-to-five, there’s no doubt about when work starts and ends; you go into the office at a certain time, leave at a certain time, and the rest of the day and night are yours. When you work at home, it’s not so clean-cut. You aren’t punching a time-clock; it’s up to you to decide when you work and when you don’t in order to complete your projects on time.

If your laundry’s piling up, the dog’s food bowl is empty, the cat’s litterbox is far too full, and there’s a mountain of dishes taking over the kitchen, then you’re not managing your time well enough. If you don’t treat your freelance work like an office job and set yourself a starting and ending time, then you’ll end up frittering away useless idle minutes over the course of the day in random spurts of activity – when you could be using that time for dozens of other activities (such as washing those stinky socks).

Remind yourself that every day you should start at a certain time and finish your planned workload at a certain time, with scheduled breaks. Quitting time is quitting time, no questions asked; you’ll produce better work if you stop and get some rest only to start fresh the next day.

Set yourself a time limit.
This is related to scheduling and deadlines; unless it’s an emergency (and if you plan well enough, those should be few and far between), don’t spend more than a set number of hours per day on your work. Being a workaholic is admirable, but not exactly healthy for your body, mind, relationships, or social life.

Ignore your phone and close your browsers, your IM, and your e-mail while working.
You can’t always ignore your phone, but invest in Caller ID so you know who’s calling and why. If it’s one of your clients, pick it up, but keep the conversation strictly work-related and concise while remaining polite, accessible, and friendly. Don’t waste your client’s time, or your own.

Try to keep calls with your friends, family, and the dry cleaner to a minimum; Aunt Chloe’s arthritis can wait for your lunch break, or after closing time. Your friends and family should know what your working hours are, and respect them as much as they would if you were in a traditional office.

Ignore the temptation to play around on the internet while working on your computer. I used to think that I’d be more productive if I had my e-mail automatically downloading every five minutes and my IM constantly on so that clients could reach me without calling, but I quickly found that I spent all my time chatting in IMs or reading new e-mails – not just from clients, but from friends. My buddy list became my worst enemy; my e-mail client turned into my daily fixation, and it didn’t help that now and then I’d spend hours browsing web pages. I could pass an entire day without accomplishing a single task, completely negating my goal of productivity. It made more sense to simply shut all of that down and only check them every once in a while, so that I could work without distractions.

Set aside time every day for other activities.
Your life should consist of more than work, and you’ll be more likely to finish your work-related tasks in a timely fashion if you have other things planned for the day. Whether it’s walking the dog, meeting your sibling for coffee, or cleaning the garage, give yourself something else to do.

Don’t turn non-work activities into work activities. This includes eating at the computer (my guilty crime). Step away from the computer, drafting table, or other work-related materials for meals; stop thinking about your work, relax, enjoy your food and any company you may have. If you’re watching a film with the family, don’t bring your laptop or your sketchbook to the TV room with you. Leave it behind. Multi-tasking is a great skill to have on the job, but you have to know when to turn it off.

Give yourself at least one day off a week.
Here’s another case where I have to take my own advice and relate a little personal experience. Between my own side projects, working for About, and my clients, I was working seven days a week when I really didn’t need to – and wearing myself out. I still work six days a week unless I manage a little productivity boost and finish a day early; however, I always have at least one day a week that’s pure Adri-time.

I may go out to a film, relax at home with my partner, have a “boys’ day out” with my friends, or just take a day to enjoy a good book - but whatever I’m doing, above all I’m not working. I’ll clean house on my day off before I’ll turn on my computer, even if I don’t exactly look forward to spending my day with a toilet brush.

Whatever you do, just be sure to step away for a day and don’t think about work. It’ll help you clear your head and approach your work with a fresh eye and a calm, rested frame of mind.

Don’t worry, all this regimenting doesn’t mean that you can’t still enjoy working from your home office. My standard work attire ranges between comfy pajamas and ripped jeans; I can’t think of many offices that would allow that, and I’m pretty sure that my cat isn’t an acceptable part of the dress code. From the loud music blasting in the background to the DVDs occasionally on repeat nearby, all are perks that I couldn’t enjoy in a regular office.

Enjoy the freedoms of freelancing, but learn to balance them with responsibility. No one said you can’t keep a tight schedule while wearing fuzzy slippers."