Addon Control Mods
AddonLoader is an addon that loads other addons automatically, as and when they are needed, which speeds up the logon process.
Note that addons need to be aware of AddonLoader for this to work; if you see "X-LoadOn-..." tags in their .toc files, they are!
A small addon designed to mirror the functionality of the login screen "Addons" button in-game. It's designed to fit inside the config GUI introduced in patch 2.4. Amp lets you quickly enable and disable addons, reload the UI, and load LoadOnDemand addons.
WoWInterface, Curse, github