Here my list (not in a particular order):
- PersonalBrain - my all time favorite since 1999
- Quantrix Modeler - because I like it (http://www.quantrix.com/
- KNIME - because it is perfect to prepare data for reporting (http://www.knime.org/
- Word - because I am used to it
- Excel - because I have to...
- FastStone Capture (Screenshots) - because it does what it is supposed to do perfectly
- Google Chrome - because it is fast

Dominik