I hate highly dislike kitchen sponges. They are so gross to me. Instead, I use these white bar rags and bar mops. They are inexpensive (find them in the kitchen section of any Wal-Mart) and I can bleach them to use over and over again. As you can see, I have a drawer in my kitchen just for them. When rolled, everything stays nice and neat -- a tip that also works wonders for sock drawers.
