Went to a large grocery store and waitied in the parking lot with a book for a few hours hoping to pick up an Instacart order. Didn't get one, but as I tried to start the car to go home, I found that I'd left the lights on and the battery's dead.

Waiting on my father to show up with jumper cables, but at least I'm not so upset about not getting an order. Would've sucked to find the battery dead when I tried to deliver it...