I like to paint small, as you can probably tell. That way I can finish in an hour or two while I'm still excited about the piece. Also, someone once told me it is better to make a small mess than a large one, and I agree!
I must say I'm enjoying my weekend of painting still-lifes! It's fun to play with the design of the flowers and background. It's also fun to play with the edges, leaving some crisp while softening others.