Irotate

Irotate allows you to flip your monitor on its side and run it in portrait mode. This is especially useful if you work with or read documents on a regular basis. iRotate also provides convenient access to the native rotation capabilities present in contemporary display drivers, via a popup menu accessible from the system tray and optional system-wide hotkeys. It's no longer necessary to resort to bloated Windows hacks, additional software layers, or phantom drivers to achieve content rotation.

http://www.entechtaiwan.com/util/irotate.shtm

Flextk

FlexTk is an integrated file management toolkit allowing one to classify and categorize files, analyze disk utilization patterns, identify storage consumption hot-spots, eliminate duplicate files and free-up storage space. FlexTk integrates numerous file management tools into a single package and allows one to perform all operations through a centralized and unified GUI interface. Designed for usability and flexibility at the same time, FlexTk is suitable for novice computer users and experienced professionals as well.

http://www.flexense.com/flextk/