Ok, I know that everyone says not to return coins to the same bank you order from. That's exactly correct for denominations that don't circulate, like half dollars. However, you might be able to do what I do, which is to TRADE rolls with the bank. I do this with cents, nickels, dimes, and quarters. They have no problem with that because these are all denominations that they use daily and have to order each week anyway. You do need to have an account to do this and you should talk to the branch manager and the head teller (the one responsible for ordering coin and currency). It would also be good to see what you can get in advance to trade with. It's hard to start out because they will have to order extra for you the first time. After that, it's a simple switch. I've been doing this since 1974 and have never had a problem. Twice I've even helped them out when they didn't get their coin order in and sold them mine for the week. I didn't have anything to look through, but it kept me on their good side. I count every roll and guarantee that they are correct and have never had a problem. I even return the rolls in the boxes that they give them to me in and they don't have a problem with that either. They even hand them out to other customers (usually businesses) next to get mine out of there so I won't see them again.
This does work. I do occasionally bring in boxes of candy for them and when the branch was robbed, I brought them a large box of doughnut holes from Dunkin' Donuts the next day. It can't hurt to ask. Just be sure to have a schedule and try to stick to it. I'm in every Friday between 5:00 and 6:00pm. If I have to deviate from that, I let the teller know at least a week in advance and I have called her to tell her of a last minute change, but NEVER on the same day that I'm going to come in. She has to get everything out of the vault and ready and that is additional work. It's only right to give advance notice.
Good luck,
Scott