'Cfd Button', and '100 Portable Apps For Usb'

Cfd Button

Makes the common windows Open and Save dialog easier to use.

http://dreamcycle.net/cfdbutton/

100 Portable Apps For USB

This stuff can be installed on any portable drive, like a USB thumb drive, PDA or iPod. You can use them at work, school, or any other place where you can plug in your device. Check them out, you can scroll-down for categories like office software, email tools, messengers, games, etc. While there are more apps for Windows users, a Mac version for each essential tool is included.

http://www.makeuseof.com/tag/portable-software-usb/