Learn the Core Keyboard Shortcuts for Your OS — They Save Hours Over a Year

You do not need to memorize hundreds of shortcuts. Just ten or fifteen core ones — switching windows, locking your screen, taking screenshots, navigating text, opening search — will fundamentally change how fast you work. The savings per action are tiny, but you perform these actions hundreds of times a day.

Pick three shortcuts you do not currently use and force yourself to use them for one week. After that, they become muscle memory and you will never go back. Then add three more. Within a month, you will work noticeably faster with less effort.