Step 1: First Things First, Get a Browser
http://www.opera-usb.com/ or http://portableapps.com/apps/internet/google_chrome_portable
Ok, so now you can run your own browsers off your flashdrive, and if you wan't even put the files on your computer, but those modified versions of software are slow so what do you do? Well you have to wait for an update you may be able to find an outdated version or a way to force update.
I will be posting the the outdated usb drive version when I have a chance to pull it from a school computer sometime soon.
Normally you wouldn't be able to update software, but because you are running from your flash drive you can, instead of updating your flashdrive-version it actually puts the new files in the program files and installs right onto your computer. Wonderful!!! No more ugly IE, and you can have your own look, and your own home-page.
old versions link: http://opera-usb.com/downloadold.htm
Step 2: Now Time for the Fun Stuff
Step 3: Games
Step 4: This Is Not Bad in Any Way
My goal is not to go against rules or anything like that, I am sure that every network administrator on the planet would love to have things other than IE on all the computers, but they don't have time, so we don't get them. If my the school super saw my opera browser he would probably ask me to do it to his computer.
Look at all these cool OK photos I found :)