clipped from: www.labnol.org   

Travel Without the Laptop, Carry Your Computer on a USB Drive

portable-apps-software

Do checkout some other wonderful sites like portablefreeware.com and tinyapps.org for downloading apps that can run off your USB drive.

MojoPac – This program turns any USB drive into a self-contained Windows XP computer. (Read: "Clone Your Computer on a USB Drive")

windows-xp-usb-drive
clipped from: portableapps.com   

Games

Internet

Music & Video

Office

Utilities

clipped from: www.portablefreeware.com   
The Portable Freeware Collection
clipped from: www.tinyapps.org   
TinyApps.Org
Small is beautiful
clipped from: www.labnol.org   

Clone Your Computer on a USB Drive - Why Carry That Heavy Laptop

clipped from: my.opera.com   

Opera Mini on your PC

clipped from: www.labnol.org   
webaroo-web-search-offline

A word of caution here – USB Drives are very convenient but at the same time, they are small so the chances of losing them also run high. You should therefore consider using a free program like TrueCrypt to encrypt data that’s on the portable drive.