CleanMyMac X - Clean, protect and speed up your Mac
Hologram - Frontend Development and Design
Fossils - Find and clean out all your old unused files
DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
Memory Clean - Super Powerful Memory Cleaning Utility for Mac
Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.