Out of all the gadget\widget systems, I like and use windows gadgets. Ive always hated the stupid side toolbar that appears over a gadget when you move the mouse on top of them. It ruins the look of the gadget IMO, and all the functions of the toolbar can be accessed when right clicking or dragging a gadget.
Here, this thing...

Remove the gadget\sidebar toolbar in Windows 7 (and probably Vista) tutorial:
1. Install resource hacker (http://www.angusj.com/resourcehacker/).
2. Navigate to C:\Program Files (x86)\Windows Sidebar\ (for 64-bit users) or C:\Program Files\Windows Sidebar\ (for 32-bit users).
3. Backup sidebar.exe by making a copy of it, and make sure gadgets\sidebar are closed.
4. Right-click on sidebar.exe and choose "Open using Resource Hacker."
5. In Resource Hacker, expand "RCData." (click the plus)
6. Expand every entry from 4000 to 4031 under RCData, you will see a little flower icon named "1033" under each entry.
7. Right-click every icon individually under 4000 to 4031, and choose "Delete Resource."
8. Save the file when done and reopen gadgets\sidebar, you are finished.
IMO this makes the widgets look a lot better.