Top 10 productivity tools

Here is my current list of tools that I use on a daily basis:

1. google (search engine)
2. thinkpad X41 (tablet laptop)
3. firefox (web browser)
4. google mail (gmail, mail client)
5. google calendar (calendar)
6. google reader (feed reader)
7. google notebook (note taking + organizing)
8. jedit (text editor)
9. ubuntu (operation system, open source)
10. blank sheet of paper + pencil