Here’s a quick one on setting up Natural scrolling (a Multi-touch gesture from Apple OS X) on Linux. A mix of Natural- and Reversed-scrolling can be annoying when working on both Linux and OS X systems.

Add the following to your ~/.Xmodmap:

pointer = 1 2 3 5 4 7 6 8 9 10 11 12

Reload Xmodmap by a ‘xmodmap ~/.Xmodmap’ or by restarting X.