I had some people ask for links to the UI that I'm using. If you're running a "modern" version of MQ ("MQNext"), then you can use /lua scripts to enhance some of your visuals!
For peer/bot management, I use
https://github.com/andude2/EZBots, which is a lua script that you'll need to run on all your toons. This wil give you a nice visual of all your characters, and is customizable for your tastes/preferences.
For hotbuttons, I use
https://github.com/DerpleMQ2/buttonmaster, which lets you build basically an infinite number of hot buttons, that you can customize as much as you want. For example, you can have 1 hotbutton that will either mount, or dismount, depending on the context. (If you're mounted, it dismounts, if you're not mounted, it mounts!)
For Buffs, I use
https://github.com/brainiac/Alphabuff, which gives you a nice sortable list of buffs!
For inventory management,
https://github.com/andude2/EZInventory. which takes a moment to load up, but once running you'll never notice in the background. It'll run on all peers, and you can see/track their inventory accordingly.
