We all have them now-a-days, they have replaced the floppy drives on all new PCs pretty much. It is the USB pen drive or memory stick. These little babies are great for transporting our files from one machine to another, but can also be loaded up with small Operating systems and portable apps, that may not be installed on a remote PC. Here is a massive collection of apps that run from a flash drive. There are now 150 apps included in the package and they are all up to date.
Check it out here.