In earlier days laptops are used mostly by people who are traveling. But these days as they are becoming cheaper many people are preferring to buy laptops. Many people are preferring laptops because of their mobility. But there are many problems with laptops also. The main problem with laptops is the heat problem. They generate a lot of heat. You need to think of the battery backup also. Many laptop batteries last for almost 2-3 hours. If you use your laptop carefully you can increase the battery backup and its life time also. Turn your brightness down as low as you can help you to get more battery backup. Defragment your Hard Disk occasionally so that the hard disk will use less power to access the data. If you are not using your laptop for longer time put it in Hibernate rather than Standby mode as Standby mode still uses power. Always keep an eye on your battery backup.