Our workdays often are governed not by priorities or desires but by what’s screaming loudest and closest in our faces. Well-intentioned as you might be about having a productive day, it’s easy for the hours to pass in a flurry of emails, meetings, and demands that eat away at your time like a tapeworm—stealthy, but destructive. Sure, there are tons of productivity hacks out there—from to-do lists to time-management apps to mindfulness exercises. Everything seems…