Damn 55? I thought i was nuts keeping it at 60

I mail it. I dont want my routing or account number just left out on my door.

Yeah good idea. Leave blank signed checks taped to your front door.

I can't believe this is even a question. What would be shady about it? Cash existed before credit cards and instead of card companies wetting their beak off you buying some oil you get it cheaper without the risk of somehow forgetting to pay off your card and having it cost you even more with interest. If you think this is some scam just ask for a receipt.