I am sure that I yanked part of this from someone else, but it was so long ago that I don't remember. I've since modified it a ton, so if you're out there and you're the one that started this, I apologize and give you credit.
This is a weakaura that displays all relevant MW cooldowns/spells. I started using it because I felt like I wasn't casting things like RenM enough, so having the reminder right in front of my face has been very helpful. Also good for seeing which defensives are available.