I've seen some stuff at K Mart and Walmart that a buddy of mine swears by. It's Purple something. It only comes in gallon jugs though. I used to use 111 Trichlorolethane, but I kept having too much fun cleaning stuff.
I use the NAPA stuff in my parts washer. Doesn't have a strong odor, doesn't peel all the skin off my hands if I dive in without gloves. Seems to work pretty good, and the shop doesn't stink if I leave the top on the washer open for a few days.
Be carfeul of the places that charge significantly less than SafetyKleen. Part of the reason SK is so expensive is that they carry all the insurance and handling requirements for the old stuff (which is a hazardous waste) when they take it away. If one of the the cheaper company trucks has a problem on the roads, the state can come after the customers for the clean-up.
What are you guys doing with the nasty old fluid when you use the KMart or Northern Tools stuff?
I live on a fairly wooded lot so about twice a year I have a pile of brush to burn from stuff blowing down. A pile of newspaper & cardboard soaked down in diesel fuel (or stale gas, or paint thinner, or grubby kerosean etc) will light a brush fire even on the wettest day.