FilerFrog makes it easier to manipulate files in windows explorer.
It integrates with windows explorer as a shell extension so it can provide you with tools to perform your every day file manipulation actions easily and efficiently.
FilerFrog was formerly a commercial product and it's now a free Open Source software.
The Spoon Browser Sandbox lets you run all popular web browsers, including Internet Explorer, Firefox, Chrome, Safari, and Opera, directly from the web, with no installs.
S. Ahern, M. Naaman, R. Nair, and J. Yang. Proceedings of the 7th ACM/IEEE-CS joint conference on Digital libraries, page 1--10. New York, NY, USA, ACM, (2007)