I used it as an emergency sewing kit.
The flip top package can hold several strong needles in it and will stitch up almost anything.
(a sailor's palm really helps when pushing the needle through stuff like webbing, leather or canvas.)

So besides cleaning the gunk off your teeth and as sewing thread, what else have you found it good for?

garotte, trip wire, thread, cheese cutter, floss, pendulum, compass (with a magnetised needle), fishing line, string, suture, fire starter if waxed, etc etc.
Welcome to the Equipped To Survive forums; multi-use is our forte and this is a question with almost unlimited answers.

QJS

QJS, you deserve bonus points for that one.

I also found it makes an excellent material for binding up a fiberglass tent pole that got stepped on and split.
Put on as a tight whipping it was still thin enough to go through the tubes on the tent and let me let me use the tent for the rest of the weekend.

It can be used to stitch up a torn backpack and leave it stronger than the original. A bit tied in a loop can keep the kids entertained playing "Cat's Cradle". Braided togetter I suspect you could use it as a bowstring. The waxed one can be used as a small torch when you wrap a bunch of it in a ball around a stick (wedge it in a crack to keep it from falling off the stick onto your hand ).

-Blast

What would you use very strong thread for?

Whipped and lashed things, and with the waxed kind I then let it sit in the sun and rub it down so the wax merges. I've used it for sewing, and for fishing. There have been a fuller list. It isn't as good as, say 20-30 test braided spectra fishline, but when I can put a hundred yards of cord in the watch pocket of a pair of jeans for under two bucks... Yeah, that's something worth experimenting with.

ironraven wrote:
"with the waxed kind I then let it sit in the sun and rub it down so the wax merges"

good thinking! and once you have wax, that is another open ended utitilies list. lubricant, sun screen, lip salve, rust protector etc
(you can also use ear wax for the same)

QJS

Fray the ends and whip it around a hook... instant fishing lure/fly.

I've heard of coating waxed floss in sand, toothpaste, or another abrasive and using it as a very slow saw. Probably from some show about prison inventions.

Sure can. I've watched my brother cut PVC with jute.

I've watched him almost light jute on fire in the process, but it worked. :P

Joey, I'm not sure it has enough wax to be used quite like you are thinking. But it is enough that will hold the various threads of floss together a little tighter. Think of it as the jerry rigged version of whipping and binding something then putting a coat of glue over the threads so they don't go anywhere. Add a little strength, not much, but helps. You can also use it to replace waterproofing o-rings if you must- not as good as the real thing, but better than nothing. I hope. :P

I didn't think about the o-ring use. Possibly also for the o-ring in a fire piston.

Iron Raven,
Do you think it would work as a substitute for teflon tape too?
I am going to try it and see if it does.
Like you said, at a hundred yards for $1.99 it is worth experimenting with.

Used it last summer, for a kid at summer camp, by attaching one end to the screw off cap of a water bottle and the other end to the neck of the bottle, like a chain on a canteen lid. Worked like a charm the whole week.

Buttons never come off after they're sewed back on with floss.

Wound around a small rock gathered into a couple of corners of a bandana, space blanket, or lightweight tarp it becomes a makeshift fastener.

Given a choice, I'll use the right tool- teflon tape is my friend.

If I have no other choice than to try dental floss and hope it makes a good seal... Sure. *shrugs* I don't have anything that I would normally tape that isn't in use, so I'm not going to try. But if it is the devil or the deep blue sea, I'll try anything.

Yeah, I guess that would be asking a bit too much of floss to expect it to work as T-tape...
Cjoi is right about the buttons never coming off though.

Swimsuit?