Now that's my Guake Terminal.

Install sl.

sudo apt-get install sl

Now try 'sl'(without quotes) in Terminal. You have a small surprise in store. Even more fun? try this

sl -laF

See the man page also to see the full list of configurations available.

How many times have you mistyped sl instead of ls? plenty huh? Here is a small program that will add a little fun to your oft misspelled sl.