Links to lots of great DIY home projects- with pictures so you don't have to click and click back. I'm sving this for when we own a home again. :) 45 DIY projects @ Tatertots and Jello
Painted wood floor: fill in any large gouges or scrapes, and sand the entire floor lightly. you can use nearly any paint on the floor, but if you're concerned about it rubbing off with traffic, talk to the people in the paint store/department. you can also get clear acrylic sealer to paint over the floor once it's dried and once cured, it'll protect the paint job.