The first thing I saw when I entered the Macworld exhibit hall today was the Canon Waterproof Housing for Powershot Digital Cameras. Perhaps it caught me at a vulnerable moment (techie overload!), but I think this thing is fantastic!
According to the rep, the camera cover, $139.99, is incredibly popular with scuba diving types and nature photographers, but lots of people buy the covers for those Caribbean vacations. The completely waterproof case was designed specifically for Canon PowerShot S200 and S230 digital cameras and can work for depths of 100 feet or less. It also protects your camera against dirt or sand at the beach or on the hiking trail or at camp. Considering the investment we make on our digital cameras these days, this thing seems necessary if you're an outdoorsy-mermaid type.