There really is no way. One thing I do, and a few others, is we spend our halves (convenience store, tip eating out, etc). Many people will take them and put them away, hence, out of circulation. If you want to turn them in your best bet is to open an account at another bank (non Chase if that is your main bank) turn them in there and time to time just write a check from the dump bank to the main bank to restock your Chase account. If they use the same company to turn their loose change into as the dump bank, then time to time you will go thru some you did before. One thing I also do, is if I go out of town on a trip (did this going to Vegas early last month), I take a bunch of my rejects and deposit some in out of town banks and spent a bunch for gas, food, etc. One of the hazards of our hobby is that time to time you will get some you have already had, unfortunately it is unavoidable.