Focus - New Tab page that gives you a moment of calm and inspires you to be more productive.
Productivity.so - Shortcuts and hacks for your favorite tools
Go Fucking Work - Website blocker so you can get back to your fucking work
Productivity Planner - This package contains a selection of 10 templates that have helped me increase my productivity over the past 5 years.
UnDistracted App - Use social media in a useful way. Control Facebook, YouTube, Twitter, Reddit, Netflix and LinkedIn in a responsible way.
Productivity Tools by Dropbox - Scan, share, collaborate & provide feedback on your ideas