On average, people check their e-mail 11 times an hour. And all of that time spent in our inboxes is eating up our productivity. This hour, we’ll talk about how we can tame our e-mail habits with Jocelyn K. Glei, who writes about the topic in “Unsubscribe: How to Kill Email Anxiety, Avoid Distractions and Get Real Work Done” (PublicAffairs).