Are you frustrated with public computers that don't have your favorite application installed? Fortunately, there are applications that you can install onto your USB flash drives and carry them with you. These applications are packaged as PortableApp that you cab find at portableapps.com. The selection of PortableApps available is growing in number and they are usually newer than U3 packages. With ever growing capacity of USB flash drives, you can pack your USB flash drive with as many PortableApps as you want. Here's my list of PortableApps that I've used and found useful so far.