As any iPhone user can tell you, the Apple-supplied EarPods (or earbuds if you have an iPod Touch) absolutely suck as far as fitting. Though they’ve improved greatly with each hardware update, I still can’t find anyone who doesn’t say they fall out of their ear constantly because they simply don’t fit right.
Enter EarSkinz. For $11 you can get these covers that slip on the supplied EarPods/earbuds that claim to not only fit better and add comfort, but improve the sound quality as well. And of course, the 11 color options allow you to choose one that best fits your style.