[Tuscaloosa Goldfinch]

I don’t know that bumper stickers and yard signs do anything other than boost morale, but I do it anyway.

[Cinnamontea]

I don’t know that bumper stickers and yard signs do anything other than boost morale

I think boosting morale is a good enough reason. I'm not a fan of yard signs, though, as they clutter a neighborhood. I think a presence on the internet--refuting left-wing garbage, participating in online polls, etc.--probably has more of an effect.