>>2232323On a similar note, office paper-sized fresnel lenses.
>fuckhuge area>flat and flexible>weighs basically nothingI've started fires without tinder by blasting inch thick sticks on a particularly sunny day. I didn't need to I was being lazy and curious. Those damn things are powerful. I also keep a whole bunch of credit card sized lenses everywhere too. One in my wallet, toss a few in the car, the rifle bag, put one in my hat's little pocket too.