I never liked the idea of not having a standard mouse click button on my new Unibody Macbook Pro, after doing some looking around online I found a great solution. Using an old DVD case and some double stick tape you can easily put a nice looking button on your trackpad, all in less than 10 minutes! Since people always ask me how my trackpad got the button, i figured i would make this tutorial.
BEWARE, adding anything to your computer MAY void the warranty. proceed at your own risk. I have not brought my computer to apple after adding the button so I dont know if they will care that i added the button, and even if they said anything, the button pops right off. But be careful.
Also, I have tried other materials, but most allow the transfer of gestures from your thumb, through the material, into the trackpad. The plastic from the DVD case really works the best!