Hotkeys is a free productivity tool based on the concept of the Windows shortcut keys. Hotkeys takes this concept to the next level.
With hotkeys you can add new shortcuts and even change the default shortcuts. An onscreen keyboard and the possibility to use drag and drop to configure the shortcuts makes it a very user friendly application.

Before hotkeys it was hard to remember the Windows key combinations. The onscreen keyboard makes this a lot easier. To display the onscreen key board you have two options, hold a Windows key for 3 seconds or press Windows + z. The onscreen keyboard appears with icons on the configured keys.
The onscreen keyboard is nice but the real power of this tool is the feature to add new shortcuts.
Adding a new shortcut can be done by dragging and dropping or by right-clicking on the key and using the "New Hotkey Wizard ...".
Note: The onscreen keyboard does not show the icon on the configured key automatically. It will show up the next you open the onscreen keyboard.
More information on hotkeys can be found at the Qliner website.
Download hotkeys v2.0 here (2.2Mb) or from one of the mirrors.
I have been using this tool for the last two weeks now and I'm hooked. Finally I am using my Windows keys!