This stuff kicks simple green in the nads, imo -
http://www.lastotallyawesome.com/htm...ld_Orange.html
They're $1 at the dollar store. Spray it on a nitro/dirt caked body, wait 10 seconds and it all rinses off clean, no scrubbing at all. Great for body prep and all kinds of stuff. It somehow makes old tape and dusty decal edges tacky again.
**Edit**
Jaz240 and I are basically talking about the same stuff. The awesome orange is a wicked degreaser.