PortableApps.com is a community site devoted to the development, promotion and use of portable applications. The site was created by John T. Haller, the developer behind numerous portable applications (like Portable Firefox and Portable OpenOffice.org) as
install knoppix to a 1 GB USB key, and create a persistent home directory in which to store files. Only let's do it the lazy way, and keep use of the command prompt to a bare minimum.