Magnet Window Manager - Magnet Developers
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Stay for OS X - Keep windows in their place
Toby for Teams - Better bookmarks, now with collaboration baked in 🔖
uBar - The Dock replacement for the Mac.
Planyway - Visual project management for Jira and Trello: manage resources, build project roadmaps, use time tracking.