1. Click the Start button and go to Properties - Taskbar
2. Click Use small icons
3. Then set Taskbar buttons to Combine when taskbar is full
Burn CDs and DVDs
Another great Windows 7 feature is that now you don't need third-party software to burn ISO images onto CDs and DVDs. Just double-click the ISO image file you want to burn, and a small program will open. Then all you have to do is select the disk burner drive and click Burn.
And here is a list of useful new keyboard shortcuts: