Good idea. I would put a piece of something like ripstop nylon over the sand to keep it off any glue on the repair. I would also be sure to keep the box covered when not in use if there's a cat or three-year-old in the vicinity.

The free PSP screen protector is a gyp. You need to spend ten bucks to get it. They're cheaper at GameStop.

For cellphones, there are chargers that take a AA or AAA battery. Couple that with a Brunton AA/AAA solar battery charger and you will at least have some fallback if the sun is out. Camping stores have some excellent LED lanterns. Look for Luxeon or Cree chips. Also, if you have walkie-talkies or other…