If you spend much time on the internet, you will see the same things pop up again and again. For me, it's these “cooling blankets” that people talk about on social media. I mean, it sounds great for summer—just like a blanket that warms you up but in reverse. Someone has created a real cooling blanket that's sort of awesome. Find two objects that have been sitting in your room for a while, so they’re both at room temperature.