Ubuntu allows you to login automatically, saving you from entering your username and password each time you boot up Ubuntu. This is ideal for home situations, where security is not really as much of an issue as it may be in a workplace.
Select “Login Window”
In the “Security” tab, tick “Enable Automatic Login”
Use the pull-down menu to select which username you want to login as.
The next time you restart your computer, you will bypass the login screen allowing you to get straight into the Ubuntu goodness.