I strongly disagree that developers should stop whatever they're doing just to do any 2-minute task that comes up. This would be a huge distraction. When you're a developer, you need long chunks of quiet time to focus on your project. Constantly interrupting that focus to do 2-minute tasks is a sure way to make sure you can never get "in the zone" and concentrate on anything.

Personally, unless a 2-minute task is time-sensitive, I let a bunch of them pile up, then take 30 minutes or so to do them all at once.