In this tutorial, we learn how to bypass a blocked site on a school computer. You will need a proxy to do this safely. First, go to a proxy site like Proxify. Going through here will prevent the school blocking system from coming up and ruining your fun. If you are blocked, you can use a text file document and run CMD on your computer. This would be the more technological way to do it. Try doing the website first to see if it works, if not, then you can try to change the firewall on the computer so you can go to your favorite sites.
Oh... and if you're working from home these days, be sure to check out Gadget Hacks' Working-From-Home Essentials.