Be careful! If you don't want to compromise your IP, don't just install Tor! I quite understand what you want, and before you do anything stupid, think about your habits. Anonymity goes
FAR BEYOND than any common security practice. It includes changing your lifestyle, and being paranoid to the extreme if you're really into it. However, most people don't want to go that far, but if you want something that naturally works, without having to configure each application, just get Tails.
https://tails.boum.org
There are more advanced setups like virtual machine to use as a gateway (and that way you avoid configuring each application or the entire OS) to naturally route all your traffic, even if your applications don't want to go through an anonymizer proxy. Take special care with this:
http://www.janusvm.com/
I hope my post helps you in any way. Play safe and do not do anything illegal. And recommend your friends to use these systems, the more people the merrier. That way all the encrypted traffic won't be just yourself.