A FRIEND EXPLAINED THIS WELL:
Sticky Keys are a feature of Windows Operating Systems (Win96, Win98, WinXP, Vista and Win7 – don’t know about older versions) for single-finger typing. If, say, you want to copy something, the keyboard way is by pressing Ctrl-c…but if you are a single-finger typist you cannot hold down the ctrl key while you press “c”….enter Sticky Keys – press the “shift” key 5 times and you activate Sticky Keys. Once activated, for example, the Ctrl key will remain or “Stick” on until you press another key. Sticky Keys work for Shift, Ctrl, Alt and the Windows key. once finished, you can disable again by pressing “Shift” 5 times.

For a full list of keyboard shortcuts go to : http://support.microsoft.com/kb/126449 . Obviously, you cannot memorize them all (at least, I can’t !) but it’s good to learn a few.