I shave pretty often because I like the feeling of rubbing my newly shaved legs together. :o Even if I wear pants later, it is a confidence booster. I don't let (legs) pass more than 3 days and everything else (face, armpits, stomach, bikini line etc) is maintained much more often. Otherwise I'm putting myself on the back-burner, you know, that feeling of neglect? :'(
The longest I've gone without shaving is 1 week if it's a lazy summer week where I stay indoors anyway. I shave what you'd suppose is normal. I knew a friend that would shave her arms and I definitely don't do that. I think the peach-fuzz is hardly noticeable and not worth that effort.
As for products, uh, Gillette Venus. I'm not opposed to using men's razors and men's shaving cream because whatever garbage they're selling for women are so cheap. I can't get more than a few clean shaves on a brand new razor that came out of a 3-package that cost $13+. I feel that the cost is so padded and ridiculous.