That is so funny that you mention Paul Wellstone's bumper stickers! Around where I live they still have his campaign posters in their yards! None, btw, for Kerry.
Not many Kerry signs around here yet, but some "Say No To Bush" signs which remain which went up before the Dems settled on what they considered to be the least insane of the primary candidates still standing.
Also, there's still some "Say Yes To Peace" signs around. Deep, really deep. I'm seeing Bush/Cheney signs in surprising neighborhood locations. As for me, the Veterans For Bush sign's been in my window for quite a while, and of course the yard sign out there too.