Once you take a snap, make a song, shoot a video or create anything like drawing, painting, stories or anything they are automatically given a tag named : ALL RIGHTS RESERVED. because your creativity is completely made by you and you dont want others to just use it. But there are many occassions when others would use it and this is the time when you need to get to give your work a licence which will allow others to use your work based on some options like complete use, non-commercial use etc.

Just check out http://creativecommons.org and it takes couple moments to create your licence which can help you to handle the work you have created. You can now share you work based on some rights and work together with others. Just move to the licence page : http://creativecommons.org/license/ and get a licence today!

The Licence would offer you the following options :
Allow commercial uses of your work?
The licensor permits others to copy, distribute, display, and perform the work, including for commercial purposes.
The licensor permits others to copy, distribute, display, and perform the work for non-commercial purposes only.
Allow modifications of your work?
The licensor permits others to copy, distribute, display and perform the work, as well as make derivative works based on it.
The licensor permits others to copy, distribute, display and perform only unaltered copies of the work — not derivative works based on it.
The licensor permits others to distribute derivative works only under the same license or one compatible with the one that governs the licensor’s work.
Jurisdiction of your license[Based on Country]

This is the most simplest way to Copyright your content