1.) All kinds! Textbook-illustration for publishers, cover illustrations for indie creators, character and creature illustration/design for a game (I'd love to do more of that!), flats for other comic artists, commissions, etc., etc. I'm always looking for more work.
2.) I'm a workaholic, and freelancing as an artist is all I do, and draw between 8-10 hours a day, with a break for lunch and a long walk, nearly every day of the week (including weekends).
3.) Right now, my comic(s) are my main focus, as I'm kind of between big projects - I've got a couple of small commissions, but nothing major, though I do have flatting-work scheduled for this fall. When I was working on the big textbook-illustration project, though, I split my work day about 65-35% between freelance work and my comic. Paying work takes priority.
4.) It's mainly been a combination of networking through friends (that's how I landed the textbook illustration gig) and people finding me through Twitter and Tumblr. I go to cons, too, but there I've mainly sold merchandise and comics; it's helped me network, though, which is always good!
5.) Be prepared to work hard in whatever time you have to do it in. Be organised. Tell everybody you're looking for freelance/commission-work. Know how much time you need to finish a piece, and price accordingly. Don't put too low a price on your work; it's worth the money you're asking for. Contracts are your friend. Be aware that there are a lot of idiots out there who think they should get art for free, and don't let them get you down.
