First Defense Nasal Screens are tiny anti-pollen nostril-plugs you stick up your nose, made from "100 percent breathable non-latex, skin safe material." The manufacturer claims that lab tests show them to be "99 percent" effective against allergens and viruses. You can get seven sets for $10.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.