Mystery Solved!

Duh. Sometimes I am just the brightest bulb in the box. The entire time I have been on the road, every hotel key I get stops working after about the first day, and it's been super annoying. I have had no clue why the hell I was cursed like this, until this afternoon when I realized I am just stupid and have been putting all the keys in my wallet, which has a MAGNET in it. Sigh.