Auto login, but enter password

If you prefer to at least enter a password but avoid retyping your mail address:

• go and edit /etc/slim.conf (howto: ctrl-alt-t then command sudo nano /etc/slim.conf, password is facepunch)
• add default_user facepunch@gmail.com

On startup you'll have to hit TAB to get to the password field (or to hit twice ENTER)