FCorp Tweakers offers a nice set of Windows start menu, taskbar, desktop, display, system and security tweaks. Mostly are advanced Windows tweaks designed for advanced Windows users

The program is quite small (less than 400 KB), no need to install anything, just double click on the file and it is on. Having said so, to download the file you have to pass through literary advertisement and popups jungle, so make sure your browser popup blocker is activated before approaching!