Focus - New Tab page that gives you a moment of calm and inspires you to be more productive.
Workona - A better way to work in the browser.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Go to Tab - Manage your chrome tabs easily when you're multitasking
PawBlock - Browser extension that blocks distracting sites
Toby - Better Than Bookmarks