efficiency
Significantly improve working efficiency
Desktopcal 
A cool calendar placed on your windows desktop used as a memo.
A cross platform open source file manager, inspired by Total Commander and features some new ideas
Everything 
The fastest file/folder search tool by name.
A launcher with highly customizable features
An easy-to-use alternative to the standard windows file manager.
A gesture recognition software for Windows tablet with touch screen.
The Open Source Keystroke Launcher.
Listary
Keep files at your fingertips. An unique search utility.
File manager for professionals.
Nimi Places 
A free alternative, with media preview, to Fences
nTrun 
Win+R for all your apps + all-in-one manager
Direct & complete access to Microsoft Outlook right on the desktop
A file manager with quadra-view technique
Rolan 
A tiny launcher in way of icons.
Snipaste 
A simple but powerful snipping tool by amazing elements detection, and also allows you to pin the screenshot back onto the screen
The best file manager for Windows.
WGestures 
Modern mouse gestures for Windows. (C#)
Add Tabs to Any Application.
Free professional dock for Windows.
Wox
An effective launcher for Windows.
ZIKU!
A database-style launcher that can collect some detailed info