This keyboard sleeve from Waterfield Designs borders between completely useless and the really useful. I can't tell. On one hand, it's a nice keyboard sleeve. Waterproof, heavily padded. It can probably take good care of your keyboard on the go. But another part of me asks, “Why are people bringing a full-sized keyboard around with them?” I mean, when are you going to use this thing? When you drag your PC with you on a camping trip?
Frankly I don't see a use for it, but perhaps there are some business professionals who need a full-sized keyboard while on the go. If so, this looks like the perfect match. There's different sizes depending on your keyboard and prices range from $29 to $49. Not a bad deal at all.
Keyboard case [SF Bags]