Remember, if your store is out of whatever it is that you want... ask for a rain check! I went to my FM today to get a few more of those Playskool toys (see below) and they were out. I went and got a rain check no problem and they should be there Monday!
I also did this back in the summer for the Breyers 1 pint Ice Cream marathon!! I ended up with over 50 pints of Ice Cream for very very little out of pocket!