Sticky notes — those ubiquitous pieces of adhesive stationery — are also available in "virtual" form on your computer if you're running Windows 7.  It's a nice little application that makes it easy to jot down a quick note, and leave on your Windows desktop so it's in front of you so you won’t forget it. (If you used Windows Vista you might have used them there; sorry, they aren't included in Windows XP.)

As easy to use as paper sticky notes... 

pin them to your taskbar so you can easily jot down a note  If you have some sticky notes open when you shut down your PC, they’ll automagically appear the next time you restart your computer.

Learn how to use them at Do More With Windows 7 Sticky Notes and get the tips & tricks you need to make good use of virtual Sticky Notes