I usually try to have a sign for every Republican candidate in each election. In 2002, I think I had about 12 signs in my yard and had to put the signs on several rows... next year we have over 60 races on the ballot so I may fill the whole yard.
Sorry. I can't stand that stuff. My family started putting up signs (mainly because of my activity in politics) in 2003. We started out with a McDermott for City Council sign, took it down and put up a Katz for Mayor sign. In 2004, we had the Brown for Congress sign up. 2006 might bring two signs: So and so for Governor and Santorum for Senate. I'd never even think about putting more than two signs up. It begins to look ridiculous and my part yard does not need to be a billboard.