[tossaway322]

+10 on the dental floss. I've been trying to find a way to buy (the remainder of) a lifetime's supply in case of thermonuclear war.

Once out of floss, I can either pull my teeth out (Well, OK, every _other_ tooth) or kill myself. Life w/o floss is unimaginable.

[sjg007]

Floss actually isn't necessary and its benefits haven't been scientifically proven. Sugar is the enemy. Drink water.

[cr0sh]

Floss is useful for things other than cleaning teeth; it's fairly strong, lightweight, and you can get a lot for little money. You can use it to tie up things, as a wick for a candle or oil lamp, sewing (in a pinch), etc. Basically, get a small roll for your bug-out bag, make sure it is unflavored and waxed.

[erikpukinskis]

It's usefulness depends a lot on how straight your teeth are and what kind of food you eat.

[blubb-fish]

okay, you obviously never had a piece of meat stuck between teeth ... it's going to start itching and will drive you literally crazy