NetShade allows you to access the web anonymously from an access point that you choose. It also makes your presence on the web anonymous by routing your connection through a proxy server. There are a bunch more claims on the site but in the end, it's a way to access the web and pretend you're coming from somewhere you're not.
Beyond the obvious security uses, it's a way to access web sites that have geographic limits imposed on them. For example, I use it to watch BBC's iPlayer in the US. It would have been really useful to have access during the Olympics so that I could have watched the BBC's coverage of the games instead of the cr@p NBC showed but better late than never.
Okay, so you can buy the software at a touch under $30 but where's the fun in that? Of course, we want to keep everything legit so here's a way to get a legal serial number that has no expiration date.
Go to the MacHeist web site and download the game, play it. Register and a full serial number will be sent to your e-mail address. Hurry though, the game won't be around forever.
And if you're not one for games, the solutions are posted on the MacHeist forum. The solutions for all of the levels are posted in this thread, just read through and play along. The games are pretty easy to solve though so you might enjoy the distraction without the cheat-sheet.
Time to get the serial number - about 5 minutes.