Declutter your Inbox by scheduling newsletters for Saturday morning
Schedule social media (LinkedIn, Facebook, Twitter) emails for evening to avoid distraction during work hours
Schedule every email from a specific sender for a time of your choice
"Email is not a messaging protocol. It's a todo list. As a todo list protocol, the new protocol should give more power to the recipient than email does. I want there to be more restrictions on what someone can put on my todo list."
Paul GrahamFounder, Y Combinator