PortableApps is a menu and application launcher system that runs on/from a USB device. In fact it can be run from any drive, I have my netbook's hard drive partitioned and run PortableApps on my D: drive.

For today's AGM hands-on session you can experiment using the H: drive on the lecture room computers - this will be faster than using a USB device

The home of PortableApps is http://portableapps.com

Within this I suggest you first browse the range of Apps available on http://portableapps.com/apps

Then look at the download page http://portableapps.com/download