cleaning my garage floor?

[qksilver]

After stripping quite a few trucks, my cement floor is really nasty. I slid about 15 feet today and landed on top of an engine laying on the floor. The kick down cable bracket tattoo'ed my chest and the dist branded my belly.. At least it stopped me from using my hands!
Money is tight, what can I use to clean it? Stains don't bother me but it would be nice to have a clean floor.
I stopped using Kitty litter to get the spills up because the dust was getting into every thing.
I need something that won't kill me or my dogs, the floor has drains but into a drain field outside.