For New Computer Users, Use the computer for at least 20 minutes a day. Even if you are just checking your email or playing Solitaire, it counts! This will get you familiar with the mouse, clicking (right/left, single/double) and dragging.
For Advanced Users, There is a Stretch Alarm Windows Vista Sidebar Gadget you can download from the Microsoft Gadget site. Click Here for some stretches you can do at your desk to help reduce muscle pain and tension. This can greatly improve working conditions and overall mood.
Check back every day for more tips from the JaxComputerChic!