Say hello to my little friend. AutoHotkey is a small utility that can accomplish big things. It's one of the best ways I know to make your PC work exactly the way you want it to.
Specifically, AutoHotkey (AHK for short) is a macro recorder, meaning it stores a sequence of keyboard, mouse, and/or joystick (remember those?) commands and then lets you play them back.
That may not sound like a big deal, but trust me, it's incredibly handy. For example, a simple AHK script can remap any key on your keyboard. Want to, say, turn your Caps Lock key into a Mute button? It's a 60-second job. Same goes for using the Insert key for something that's actually useful.
That's just a taste of what AHK can do.