Just nabbed a bunch from a local outdoor store. Putting them to use already as waterproof document storage. I’ve got one full of copied docs (ID, credit cards, spare cash, dog’s rabies, etc.), one for local maps, emergency phone numbers, etc. and one for first-aid/vehicle-related instructions on index cards.

I’d definitely use one for my phone if I feared losing it to water (iPhone 4 fits perfectly and you can still use touch screen and make calls)

Any of you guys carry or use these things?