I picked up a Peugeot UO-8 from the LBS. Got it for $30. They didn't want to put any time into it, and I found out after I bought it that the frame is bent. Still can salvage the brakes, derailleurs, etc.

Anyway, the bike was really dirty, greasy, a real mess. When I got it home I sprayed it down with Challenger cleaner, then rinsed with the garden house. It's absulutely amazing how the Challenger dissolves the grease, restores the brake hoods and brake pads and everything shines. No wiping or anything. Spray it on, rinse it off.