Other handkerchief uses

[Kleeny]

Aside from their intended function, what else do you use handkercheifs for?

I myself use them for cleaning my glasses mainly, as I have anti-glare coating on them, tissues scratch the lens, I keep a hankie in my left pocket, unfolded, for blows and one in the right, folded, for glasses.

I also use them for, erm, ahem, "wiping up spills", if you get my meaning.