Without a doubt, World of Warcraft's default interface has gotten a lot better over the years -- but that doesn't mean we've stopped using addons to improve our game experience. This hit me, suddenly, when I installed WoW onto a new computer and certain parts of my game experience were missing in action, which resulted in a rush to the nearest addon site to load up on must-haves, like Auctionator. I don't play the auction house much, but an auction addon is what makes the difference between me playing the auction house occasionally and not bothering at all.
This got me thinking, readers -- do you have any must-have addons? What are they and why can't you live without them?