I believe HotStrings are one of the simplest & most productive tools you can use! In this AutoHotkey HotString tutorial Jackie Sztuk from JZApp.com and I walk through many uses and how easy they are to create, maintain, and use. There are some great tutorials on the AutoHotkey site as well as a small script that makes adding new HotStrings a breeze.
If you’d like to have a “spell check” running in every windows program, you can use this Autocorrect script.
Here is the AutoHotkey HotString tutorial Video