Good Gear Guide
In Pictures: Top 10 productivity apps for Windows ...
Toolbox For Windows 8
The Toolbox For Windows 8 app is loaded with a number of useful tools optimized for Windows RT/8's modern UI. The app is continually updated and offers a number of free or low-priced plug ins, and features an integrated calculator, currency converter, notification tool, clock, note-taker, and doodle apps, and even a voice recorder.
In Pictures: Top 10 productivity apps for Windows RT