One of the most annoying aspects of the iPod app on the iPhone and iPod touch is Shake to Shuffle. How it works is self-explanatory: shake your device and it starts playing a random song. The problem is that it’s enabled be default and always waiting for a shake.
There have been many occasions when I’d pick up my iPhone in the car, select a song and plop it down on the seat, only to have it interpret the plop as a shake and abandon the song I just selected.
Here’s how to turn it off. Open the iPod settings and toggle Shake to Shuffle off. Now you can plop your iPhone or iPod touch your heart’s content.