Life hacker is a person who come up useful tools or methods to make his life more efficient. I have came across two websites listed hundreds of ways to make us more productive, waste less time each day. The beaty of life hacking is not merely about doing things faster, the key is to do it with a style and have fun at the same time. Here is one very cool application as an example. The Macbook pro has built in accelerometer to shut down the harddisk to protect it from crashing. Someone write an small tool to read the measurement of the accelerometer for changing the virtual desktop. Instead of pressing a hot key, the user only have to tab the side of the laptop to switch from one virtual desktop to another.