The EuroOffice Sparklines extension for OpenOffice.org is a bit of a one-trick pony, but the trick it does is a rather clever one. It allows you to turn data in a Calc spreadsheet into a sparklines graph.
In theory, Compiz effects should not work under Enlightenment. But Elive developer Thanatermesis has now morphed Compiz and Enlightenment 17 to achieve the seemingly impossible.
Writing computer-related tutorials, documentation, articles, etc., is virtually impossible without a good utility for taking screenshots -- and Shutter has all the features you could possible need.