Grand Cherokee battery woes

We have a '96 Jeep Grand Cherokee. On Sunday, the battery was completely dead. It was on borrowed time - it should have expired two years ago.
So, I replaced it. Everything seemed fine, and when I parked it, I made sure to turn off all accessories and lights. This morning, the new battery was dead. All the accessories were off, so what might be draining my battery?

you have to start measuring amp draw on the battery and then pull fuses till it stops.

remember you need 30 min to an hour for everything to go into sleep mode. opening the door or hood light resets that time.