Blreeaargh!

There are three licenses I use most of the time.

I use the Apache Software License (ASLv2) when I want to make money out of Open Source Software, it's simple and easy to integrate with other software.

I acknowledge the GNU General Public License (GPLv3) whenever I put my FLOSS hat on. This is pretty nasty to do business with, so it's better off used in spreading the teachings of The Force of Open Source to the uninformed.

I apply the Creative Commons license (CC) in my presentations, photos and content materials because it has specialized clauses on how you can control your material. Not only does it encourage you to share, it makes you look real friendly too.

Then for all things not thought deeply enough of, or stuff I don't care much of, there's the Do What The Fuck You Want To Public License (WTFPL).