Great thread. I am, without a doubt, a garage sale junkie. I'm always researching new items to keep my eyes out for. The days of finding a box of pre-war cards is long gone but there is certainly great finds to be found. Here's some stuff I've found this year:
1949 Freedom's War #109. This was the first time, in a long time, I found a vintage card at a garage sale, it got me pretty excited. I spent quite some time trying to find more but this was the only one.
1964 World Series Spin-a-fact. Its a pretty cool item, gives stats and facts for every world series up to that point. Measures 10" in diameter. Not sure why the picture came out blurry.
Not sure if this is considered a card. It measures 2-3/4" x 1-1/2".
And finally, found this last week. These old 8mm boxes make for great display. This one unfortunately was missing the film.