WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
Gitify - GitHub Notifications on your desktop.
WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.
Meteorite - Smarter GitHub notifications.
TreeSize - TreeSize tells you where precious disk space has gone to.
Octobox - Untangle your GitHub Notifications