I've been rescueing these foods from grocery store dumpsters since 1976, saving me many thousands of dollars and helping me to be debt free, including no mortgage, for years now. Sadly, most grocery stores now have dumpsters that are attached to the store wall and fed from the inside, preventing the use of this huge valuable resource that ends up in landfills.

http://www.grist.org/food/2011-11-18-use-by-dates-a-myth-that-needs-busting