They won't help you if you've got a cold, but Kleenex's new antiviral tissues should help prevent you from spreading it. Kleenex claims the tissues, treated with citric acid and sodium lauryl sulfate, will kill 99.9% of cold and 'flu viruses.
(Credit: paeyl, a Hoopy Frood Who Really Knows Where His Towel[1] Is.)
[1] And his Kleenex.
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...and, btw, I suspect that this treatment will make the tissues worthless for cleaning one's eyeglasses.
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I don't know if it'll impact cleaning your glasses, but I don't use Kleenex for that anyway. They leave too much lint, IME. I prefer a specific lint-free lens cloth or a 3M "high-performance cleaning cloth".