Windows F1-F12

The article at this link lists some useful Function Key actions, like Windows Explorer F2 letting you quickly rename the selected file or folder, Alt+Ctrl+F2 opening the Documents Library in the Microsoft Office suite or F10 showing the Menu bar in Firefox and IE. My bet is you'll run across something you've not heard of that will save your mouse-clicking finger a lot of work.

http://www.guidingtech.com/10678/best-uses-of-function-keys-f1-f2-f12-windows