Showerthought: I thought the $9 phone timer trick for paying bills was silly, then I missed a $47 water bill
I rolled my eyes when a coworker said he sets phone alarms for every bill, but after a $47 late fee from the water company here in Reno, I tried it and haven't missed one in 5 months. It's boring, but it works. What dumb little system actually saved you money once you gave it a shot?