“While inbox zero every day is a great goal, you don’t want to sacrifice predefined work or unplanned to only do defining. Some people have such high volume too that getting into zero each day just isn’t realistic. And those less than two-minute ones can chew your day away quickly. That said, most people, in my coaching experience, don’t spend nearly enough time on defining because they don’t consider it “real work.” And, they have so much backlog that it seems unattainable.” Go to the source for more: Getting to inbox zero – Getting Things Done®