Originally posted by: ViRGE
Any side effects, such as wearing down paint or staining fabrics?
they can damage the finish on some wood (like paneling).. but seem fine on painted wood. fabric is fine, it's just a weird white sponge and you just use it with water.. so.. as long as the fabric can handle getting slightly damp it's fine.. they're good on shiney appliances too, although you might need to dry them to get them sparkley. the newer ones with the blue sponge on the back side are nicer than the old ones.
like most anything you probably want to try them on a small spot that doesn't show much and decide for yourself.