Add My Computer Taskbar at the top of your desktop

 (click on image to enlarge it)

     This a very simple trick but very rarely used. Using this trick you can add a taskbar at the top of your desktop and directly access it's content just by a click. For example, if you want to make your drives easily accessible from the desktop, instead of making your desktop messy by adding shortcuts, you can add a my computer tasskbar to your desktop.

Steps:-
1) Click on Start.
2) Drag the My Computer icon from the start menu to the extreme top of your desktop and hold it. You'll be able to get a  taskbar as above.You can resize it, set it to auto-hide so that it does not interfere with other windows.

     Similarly you can add new toolbars to your desktop by right clicking on the taskbar you have created using the above procedure, then go to Toolbars>New Toolbar... and select the drive or folder you want to see in the toolbar.

For basics on registry editing and more Windows tweaks, view other posts under the category.