Some nice windows 7 tips I found.

Command Prompt output to Clipboard
You can directly paste the output of a command prompt command into the clipboard by adding clip to any command. For example: dir | clip

You can then paste it into notepad

Changing the Power Button Command
You can change the command behind the power button. To do this right click the start button, choose properties. You can now choose the action you want the power button to do (like  lock, logg off, sleep, etc)

How good is your laptop battery
To find out how good your laptop battery still is, execute the command:
”powercfg –energy”

After 60 seconds you will receive a html report named “energy-report.html” in the same folder where you executed the command. Open this html file and scroll almost to the end, you will then find a section called Battery: Battery Information. Compare the Design Capacity with the Last Full Charge
note: you need to have admin privileges