Take the popular GNU image editor anywhere with you
You probably know GIMP already, but now if you have a USB memory device you can take it anywhere with you thanks to Portable GIMP. The Portable GIMP is a special version of the well-known open source image editing software that has been specifically developed for portable memory devices. The whole installation program and its plug-ins have been packaged to fit your USB stick, so that you can work on your images no matter in which computer you are.
Portable GIMP includes all the graphic editing tools any serious designer or photo editor could ask for. It's true that it takes a while to master the program's interface – especially for those who are not used to multiple-window working environments – but once you get the hang of it, Portable GIMP enables you to do pretty much anything you want with your images.
With Portable GIMP, you'll have the original GIMP's resources and tools always at hand.