Whether to traverse an untrusted network or appear to come from somewhere else on the 'net to circumvent silly geographical restrictions, I often have need of a web proxy.
I'm certain others do too, so here's a quick HOWTO video on configuring Squid to authenticate and encrypt connections, and use a non-standard port.
Simon's Sneaky Web Proxy HowtoA quick video on configuring an encrypted Squid proxy on a non-standard port to traverse untrusted networks and avoid surveillance on the Internet.