" Scrupulously update your lists so that you’re constantly focused on the people who are most important to you, and so that you are able to filter both outbound and inbound messages. You want to be getting everything your “1”s are putting out into their newstreams, daily; “2”s you may want to check in on only once a week or month; “3”s once a month or quarterly. Build these “tours” into your work schedule. "

― Keith Ferrazzi , Never Eat Alone: And Other Secrets to Success, One Relationship at a Time