Cleaning Motor Oil Stains

I know some people have used kitty litter to clean up oil leaks. In my experience it's been worth investing in a full-out absorbent product, although I work with cars on a regular basis so I deal with a lot of oil leaks. Stuff like SpillFix works really well - actually cleans up the spill without making an even bigger mess first and even takes care of the oily after-effects that I'd normally have to scrub to clean!