Here's a cool "launcher" project: https://www.youtube.com/watch?v=Jv2LAqkmd1c&feature=youtu.be
https://github.com/plul/Public-AutoHotKey-Scripts
With Pulover's Macro creator, you can literally record actions with mouse and keyboard, get the output in AHK script and tidy it up. You can trivially recognise pixels, meaning you can tell your mouse to click x,y coordinates or a certain button (for when there is no API for something, for example)
Some genius made a virtual workspace for windows using AHK: https://github.com/octalmage/mdesktop
Some random uses I have for AHK:
* trigger today's date in dd.mm.yy (or dd-mm-yy, or any combo you like) with a macro, useful for when you drafting documents and need to quickly insert the date
* lookup the train schedule from work to home with a keypress
* shortcut to German characters on an EN keyboard
* paste and translate to/from english with dict.cc and leo.org in separate tabs
* "sig" expands to my email signature
* shortcuts to colleagues' obscure foreign names, which I always misspell in emails (saves embarrassment!)
* macro to run common applications like notepad, chrome, powershell (obvious use case)
* macro to open an excel to do list
* Quickly switch between headphone types on a work PC (USB headphones and regular headphone jack needed some fiddly settings to be changed to switch between them) (https://autohotkey.com/docs/commands/SoundSet.htm)
* Tool for popup window, can be used to display almost anything, e.g. your list of shortcuts in case you forget them! - https://autohotkey.com/boards/viewtopic.php?p=100953#p100953
* Huge list of ideas here: https://github.com/ahkscript/awesome-AutoHotkey
AHK has a huge amount of cool projects on the forums, and it runs like lightning since it is very resource light.