Trying to keep your keyboard free of dust balls, spills, and crumbs is practically impossible. I've already provided some tips on how to clean your keyboard and deal with keyboard spills. However, if you don't want to be bothered with spot-cleaning your keyboard, Sonnet has created a silicone keyboard cover for Apple keyboards and Apple wireless keyboards that is thin and flexible enough to type on. These covers, which I spotted on Gadgetress, will help to repel the dust and prevent any spill damage. Once the cover needs to be cleaned, all you have to do is wash them with some soap and water. Priced at $20. I think I'd use one to cover my keyboard with when I'm not around, but I don't think I'd like the feel of it when I'm typing.