...
I don't subscribe to the newspaper. 
But I did poke around on Craigslist for an experiment. It looks like some of the locations could be a bit far. A good excuse to get in some early morning rides on my Harley.
Do you go to these places and hope for the best, or is it "appropriate" to contact them and ask if they have any stamp related items there before you go so you at least know you'll have something there to look at?
-IBFS