WoW is very much designed to where you can play it in short bursts... not that we usually do, but we could. The way quests are broken down into quick, bite-sized pieces is arguably one of WoW's best -- and perhaps most addictive -- features, leaving you a breadcrumb trail of quest rewards that keeps you saying "I'll log out after one more quest." (Right, like that ever happens.)
Of course, for all WoW can take up small bites of your time, there are also big projects, like wrangling major achievements -- say loremaster or zookeeper -- or finishing up collections. So for today's discussion, we want to know: what's the longest you've ever spent on an a task in WoW?