Ziplock Bags
I put lots of things in ziplock bags, but the bags don't fit snugly around the gadgets or allow you to use the gadgets easily. Plus, they tend to open themselves up and let moisture in.
Covers
I have covers or carriers for my MP3 player, cell phone, GPS, etc. but they all allow condensation to come in.
Waterproof Pack
You can carry your gadgets in a waterproof fanny pack, but none of the packs I own are waterproof.
An Old Theater Trick
A friend from the theater offers this easy solution: condoms.
"Those of us in the Performing Arts know that anytime you have to put a piece of machinery next to a warm body, you need to insulate it. The best thing for this job is, amazingly enough, a condom.
A condom around a wireless microphone battery pack is a must. Battery packs are about the size of a cigarette pack, so you know they will fit over a cellphone.
I suggest that if you MUST carry your cellphone, ahem, where it will get warm, use protection! Use a condom!"
My friend was inspired to write this because she was my support on the marathon, and I had slipped my cell phone into my bra because it fell out of my fanny pack in the first mile. It worked for the first 22 miles, then succumbed to a clouded screen. Luckily, it dried out after the marathon and continues to work. But she was disturbed that she couldn't contact us in the final miles.
I don't know about the condom tip, it may work great, but ziplock bags take no explaining when they fall out of your fanny pack.
