Last night I watched the latest episode of Monday Night Travel, which featured a trip report from Rick Steves about his recent 50-day guidebook research trip through Europe.
https://www.youtube.com/watch?v=7MN_eonajDE
At the end of the video, he shares a few travel tips. The one that really stood out to me was unplugging a noisy hotel refrigerator. For some reason, that had never occurred to me before. I could have used that tip on my last trip. The refrigerator in my Stockholm hotel was so loud!