As I frequently reinstall my OS (for various reasons) but in the mean time I still want to be able to access my old OS for daily use, I do a lot resizing of filesystems and partitioning of my hard disk. When the time has come to use the new OS installation as a daily driver, I like to reclaim my old OS space so I can have all the space available.
In every modern home nowadays, there are at least one or more home automation devices. Probably the most used kind of devices are smart thermostats. Often energy companies have there own devices which you can buy with a discount if you take a contract with them as well. There are also some standalone devices from third parties available on the market. Regardless of which device you choose, they all have roughly the same benefits over a standard thermostat: controlling the temperature when away from home, detecting if someone is actually at home and the overall ease of programming.