Not just for geeks. You never know when you might want to try Linux or even use it to access your computer if Windows goes pear-shaped at any time and you get shut out. LinuxLive USB Creator
Stick stuff
Both as a back-up and a means of being able to use your favourite applications, be it browser or media player, even if you do not have access to your own computer or laptop, shove them on a USB stick…Portable Software for USB Drives…