Here are a few ideas for recycling an expired credit card or store card:
Scraper When nothing else is handy, use an old credit card to scrape frost from your windshield.
Plectrum The corner of a old credit card makes a good substitute plectrum if yours has gone missing.
Repair tool A piece of out-of-date credit card makes an ideal instant tool for smoothing down wood filler around the house, or for similar bodywork repairs to the car.