I still think my favorite is the good ole fashion triangle bandage. I had one from my dad as a kid as far back as I can remember. Pulls duty as scarf, headband, "do-rag," dust filter, pot holder, bandage compress, tie-down strap, snot rag ...

All the same one! It's amazing how durable it is. It's actually fraying at the edges finally, but that thing has probably been camping with me at least 150 nights and probably close to 1,000 miles.

Yes, I wash it!