How can I prolong the life of my laptop?
You can protect and significantly extend the life of your laptop computer by observing the following precautions:

Purchase and use a security cable.
A laptop security cable, such as those available from Kensington, can be purchased from most electronics or computer resellers. Some bookstores also carry security cables. Leaving laptops unattended overnight or for any extended period of time is not advisable. Securing your laptop with a security cable will greatly reduce the possibility of theft.