I clean greasy things with Purple Power.
I use mineral spirits in the chain cleaner tool. Pour off the dirty spirits into a jar and let it settle over several days. Once settled, the spirits can be used again by simply pouring the clear stuff off the top.
To clean the chain cleaner, spray it down liberally with Purple Power, shake it around and pour it off onto a rag or some paper towels. Once dry, the rags can be thrown into the trash.
-Kedosto