On the floor. That's where a lot of people end up putting their iPods or cell phones when the're charging at an outlet. Or even if you use a landing strip, bedside table, or desk, they still take up space and their cords can get in the way. We like the Socket Pocket because it provides a pocket for devices right next to an outlet.
It mounts by plugging into any standard electrical outlet. The drawback: it requires that you have two side-by-side outlets: one for charging and one for holding the pocket. Two for $12 at Solutions.