I would like to chime in with the observation that the type of inbox you choose really doesn't matter, as long as it conforms to a few basic characteristics.
* It should have at least 3 sides so things won't tend to fall out
* Wire in-boxes are not great, as small items like batteries and keys fall through
* It should be easy to pickup and carry in case you need to bring it home (as I do too often)
The large one Kelly shows a picture of at the end of her post (you can get them at Target), are terrific and are what my wife uses. (But for my taste, it lets you stack stuff a little too "side and deep" for my tastes.