What would you like advice on? If you want to know what to use, visit your local Paint Retailer (found in the Yellow Pages under PAINT - RETAIL) for material. Then, follow the directions on the can. Be sure to get the paint w/the sand already in it. Keep stirring it because it settles out quickly. Also, bring your garage measurements w/you to the Retailer.
My best to ya and hope this helps.
Jay J -Moderator
PS: Oh, if you're asking if "I'd" do this, the answer is no. I don't eat on my garage floor, sleep on it, nor do I entertain my guests on it. In addition, I've turned a maintence-free material into one that now requires maintenance. Sure, it looks nice but that's about where it ends for me. (Just my $.02 ...)