Use a penny to help out in these situations:
Check your car’s tires by placing one head down between the tire tread grooves. Replace the tires if you can see Lincoln’s whole head or any of the “In God We Trust” letters above his head.
Put them all around vulnerable garden seedlings to repel slugs. The folklore is that slugs touching copper will experience a tiny electric shock as electrons are exchanged between a slimy slug and copper.
Straighten curtains by making an opening in the bottom hem, sliding in a penny or two, and sewing the hem back up. This will keep curtains hanging level and stick-straight.
Discipline your dog by putting 2-4 pennies inside an empty soda can, taping the top well and rigorously shaking the can. What’s great about this method is it’s very successful and quite harmless. It takes very little shaking of the device to discipline your dog. Dogs dislike the sound of this noise making tool and quickly associate it with the bad behavior they’re displaying. (We just have to pick up the can at our house and Scarlett goes into hiding!)
Instead of putting quick melting ice on a bang or bruise, use a sock filled with pennies. Simply drop a generous amount of the coins into and old tube sock, tie it shut and freeze. It will do the same job as an ice pack without the drippy mess.