These are some MEL scripts I've assigned to hotkeys. They are written or pieced together by me based on stuff I found in maya documentation, stackoverflow, forums, etc., or my own guesswork or trial and error. I'm sure there are plenty of weird edge cases where some scripts don't work or break somehow, I fix them as I discover them. The list looks longer than it really is, because many scripts have copies for each axis, some for +/- on each axis as well. Also some scripts depend on the presence of others, it should be mentioned in the description of each script if so.
My current hotkey sheet can be seen here (source is here) and you can make your own using my templates which are explained in this video.
I recommend [Auto