Signs O' The Times.

From Human Events:

You never see a Ron Paul sign buried under snow. If need be, a Paul supporter will rig up a reinforced frame, a heating element and a spotlight to keep the sign well visible at all times. I wouldn’t want to try to steal a Ron Paul sign without a bulletproof vest and back up either.

Heh-heh. Christmas lights do a pretty good job of keeping signs visible at night as well, so I've heard.