As an almost unintentional "boutique" pedal builder/buisiness owner, and totally intentional work-from-home-dad I will list advices:
1. Get rid of any kids in the room. They want to help, but they are bad at it.
2. Take a fucking break. I cant tell you how many times I had a deadline breathing down my neck, and a fucking pedal that wouldn't work at 2 AM. I've looked it over, a dozen times, tested it, swapped components, thrown headphones, smoked and swore, only to find a simple solution around noon the next day.
3. Buy some cheap headphones for throwing.
4. Start with a GREAT BIG enclosure. Working inside those aluminum motherfuckers is beyond a pain. After you get a pedal or 3 built, then worry about shrinking shit down.
5. Do not use stripboard. Or at least stripboard from Futurlec. If I sent my 4 booster circuits i did on stripboard to the very lord of analogue electronics, he would say "hmm,, this should work" and I would say,"yeah I know, but it doesn't!" and he would say "Oh, I see. Fucking stripboard, man, fuck that shit."
6. Yeah, start with a kit. I also read some instructional things over and over and over until I had them memorized, made things easier. Keep a copy by the toilet.
7. Spend the money on good components!
you can look at my little empire of noise here
http://myspace.com/dwarfcraftdevices