Hey Ramsey -
Your tip came in handy this week for me.
I have a TV display at Bloomington South, and use a remote control to turn it on, since I can't access it directly. On Thursday morning, the remote wouldn't turn on the TV. I kept pushing the buttons, and nothing happened.
The remote had been in the car overnight, so I took out the batteries, and foudn them to be quite cold. Remembering your tip, I warmed them up, put them back into the remote, and it worked just fine.
Keep the tips coming!