Any plastic bag, but not just for your phone! Use it for your wallet and keys also. For me, i also pack a spare pair of dry socks in the bag as well. I can stand having wet pants, but wet socks drive me crazy!
I agree that zip lock is best but there has been times where I packed a zip lock for my trip but left them at the hotel or in the car. In a pinch, I have asked for a plastic bag from a shop in Critter Country. They all seem to understand the need and I haven't had much of a fuss although once I was told they had to give me a medium size bag. It was a little big for my iPhone but I would put my phone in a corner, fold over the bag and then just keep folding over and under until my phone was encased fully. I have had this self made phone pouch in my jeans and in a shirt pocket and once just tucked under my arm and had no problems.
Woodland Hills CA - Hottest spot in Los Angeles City Limits
Re: Smart Phones on SPLASH MT?
I would NOT chance it with an unprotected phone in a pocket or a holster - When they get drenched and wrecked there are water detectors inside the phone, they will know it got wet and will not exchange it under warranty. Unless you pay extra for the full replacement insurance, you are dead.
(I have the full insurance, but I don't go looking for trouble either.)
I just put my Droid-2 in it's holster inside my backpack for Splash. That's enough layers of protection. Same thing for digital cameras, and iPods, and other electronic junque.
If you don't have a backpack, the Ziploc Sandwich Bag trick is best, followed by the "any old plastic bag will do" (as long as it's got no holes in it) method.
And they do make huge 2-1/2 Gallon Ziploc bags that are big enough for a Laptop Computer. Just in case you are ever headed to DL straight from Work or School, you might want to get a box of those...