I know everyone is aware of the Coinstar machines in nearly every grocery store, and everyone is aware that saving coins can add up, but are you aware that you can painlessly have enough money to pay your rent after a mere two years or more?
We recently did this. We had a huge, heavy jar of coins that we had been collecting since 2013. When we recently moved last November, the money available was enough to cover the first month's rent, and moving costs.
You save even more money if you roll your own coins and take them to the bank teller, but we have found that the opportunity cost of roll-your-own is not worth the 8% surcharge that the Coinstar machine takes.