[zerosix]

I, too, used to bleach mine but my daughter said, "Hey Mom, you don't need to waste time soaking in bleach solution, I just put mine in the dish washer and run it with the dishes."

Yet another way to clean sponges.

[visualops]

Well, the dishwasher cleans hard surfaces well but I don't think would be effective in cleaning all the tiny cavities in a sponge. Also, I don't have a dishwasher, other than the 2-legged kind ;^)