Looking through my collection of stuff I haven't used for a while I noticed my diving gear. In it was my 5 pocket soft backed weight belt designed to hold 2kg bricks of lead. Now a 2kg brick of lead is about the size of a wallet, cell phone... or 2-3 energy bars. Thus I checked it out. Its light, water proof, sweat proof, closes so nothing can get out and everything is right there in front of me nice and compact when I need it. Also its a nice bright color so you find it in the water, perfect to scream "I'm here!" to blind car drivers. Why I didn't think of it before I don't know.