As you know, Screenlens is a nice application for Ubuntu. The app allows you to customize your Ubuntu Desktop, like you customize your work desk.
Installing Screenlets is an easy task from the terminal. All you have to do is:
Add the Screenlets repo:
$ sudo apt-add-repository ppa:screenlets/ppa
Update the system:
$ sudo apt-get update
Install Screenlets:
$ sudo apt-get install screenlets