I haven't had that problem as rainchecks are my friend!
Foodlion had a sale of $.99/lb. I went there one day and they were out of pork butts. I went and got a rain check and sent my roommate up to the store to get a rain check. I went in the next day and they were out still. I got another rain check and sent my roommate to get one as well. I went in the next day and bought up 8 pork butts and put them in the freezer. I just used the last one up just before Christmas.
I am going to buy 8 more at $.99/lb using 1 of my 4 rainchecks that don't expire!
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