We had friends who got Domino's every Thursday. On days when they hadn't called by a certain time, Domino's would call them and ask if they wanted their usual.
When I showed up to pickup my pizza and they recognized me, I scaled back a lot. I knew then that I was going too often relative to everyone else.
I got a notification from my bank when my girlfriend used her debit card to order at the local Chinese on her way home from work. I was bored so I went to surprise her... she was then greeted there every time with "is your boyfriend coming?"