Mr. Clean Magic Eraser - Two thumbs (and all my fingers and toes too) way UP!!!!
This stuff rocks. How does this stuff work? "Melamine foam is best known for soundproofing in everything from airplanes to ceiling tiles, but Procter & Gamble has discovered that it can work as a scouring pad, too. It looks like a sponge, but works like an eraser, wearing away as you use it until nothing is left."
It uses no chemicals (just water) and it virtually melts the grime on everything without a lot of scrubbing. It removes all the unwanted junk while leaving the primary surface unharmed.
This product is a necessity for people with small kids or pets. And it's fun to boot! Highly recommended!