And I mean friends. You're not going to get business out of a guy you just met. You're probably not going to get business out of many people the first time they ask you. Never ask them if they have work they need done, let them complain about not being able to find someone, then mention you do that sort of work (whatever it is, if you're smart you can figure it out well enough to do better than the majority of people). Don't back down on rate, they might balk at first, but when things get dire for them and they still can't find anyone, they'll remember you.
Avoid debt like the plague. It'll make you a slave to a constant, regular income. I have constant, regular income, but I also know I have urges to take 3 months off at a time. Debt is the mind killer. It's a lot easier to face the prospect of losing a contract when you know you have 3 months before you need more money, not 1 week.
EDIT: and definitely lie to your in-laws about how much you work. A) Few people my own generation can get over "not having a good job", fewer still of the older ones. And B) they might think not working for a cluent means you're not busy and they can make demands of your time.
I am currently on a sabbatical of sorts, and am keeping the option of doing freelance work as a way to extend it, but so far, all of the 'dude, this would be great for you' opportunities from friends haven't panned out. Part of the problem might be that I don't really need the work, so I haven't been following up too aggressively, but it still feels like I would probably have to go outside my network to land the first gig.
I had my fisrt gig within a month. in that month, I turned down a couple that would have been too low of a rate or bad work.
I don't think of it so much as luck as "having many irons in the fire". None of the opportunities you will end up pursuing will be that good of a chance of coming through, we just kind of delude ourselves into thinking certain ones are better than others. It just becomes a game of stacking up enough low probability opportunities that eventually one of them comes through.
I was having lunch with a former colleague, and his cell phone rang. It was his boss "help! Two of our programmers just quit! Do you know anyone who could start, like, tomorrow??"
Where do I get contracts from? The usual suspects - jobserve, networking, and various other places. I think it's probably worth pointing out that having had a well-completed LinkedIn profile for over 10 years, it's never brought me anything.
Edit: drop me a line - happy to help, heck, this might be the beginning of a technical writing dynasty! ropley at gmail dot com.