It seems that whenever I need a soda pop or a bag of chips, I only have pennies! Very frustrating for me, because you find this out after getting to the vending machine. Why is there not a vending machine that takes pennies?I suppose that you need too many of them to match up. The machine usually can't store a vast amount of space-consuming pennies. That makes sense, but why hasn't someone developed an extra storage space so vending machine can takes pennies?

Or ... put a penny-changer near the vending machines!

Problem solved.