I've had this problem since I started taking regular trips to work with my bike, from feburary to november. Summer is not a problem, but autumn and spring can be pretty rainy here in Hungary. And the rain is not your friend, when you're riding a bike. It get's on your everything, which I can cope with, because eventually it will dry over time, but the rain on the visor gets in your sight.
I've seen mikeasaurus' instructable with this idea, and basically i copied it, with some touch-ups and modifications.
List of things you'll need:
Make sure your glove is clean, and laying smoothly on your workbench. ;)
My glove has a factory default terrycloth piece on it's thumb, but hence it's useless (see caption), I wanted to preserve it's function. After all, it's still good for smearing bugs all over the visor.