When the ssh access to internet is available from office, it is really easy to have uncensored internet with only portable applications (putty and chrome):
My putty setting to access my ubuntu box from my office has a SSH port forwarding: L6128:127.0.0.1:3128
On my box, sudo apt-get install squid
I launch chrome with the command line option --proxy-server=127.0.0.1:6128