\"If computers are to become smart enough to design their own successors, initiating a process that will lead to God-like omniscience after a number of ever swifter passages from one generation of computers to the next, someone is going to have to write the software that gets the process going, and humans have given absolutely no evidence of being able to write such software.\" -Jaron Lanier
Heres a thought. Most of linksys's models BEF series Cable/Dsl Router have forwarding in your http configuration.
your default login for your LinkSys Router is:
admin
password:
admin
ip :
192.168.1.1
In the forwarding section you may place your port 80 sends to a proxy connection for good if you dont plan on setting all your pcs to a proxy. and can be easily turned off and maintained this way.