Yeah, using snow kicks ass. I do it when it snows around here. We get a bit every winter, but it's only around for no more than 3 days at a time, so I have to be quick.

I too use cardboard filters that I roll up and put in the mouth part of my joint. For a few reasons: I find without it, the mouthpiece gets wet, thus the mouthpiece closes resulting in shitty hits. Another reason is, is it's like a built in roach clip that I can hold onto, and smoke the entire joint without saving a stinky, little piece of pot. Roaches fucking stink like ass so I try to smoke the entire thing.