Realistically speaking, it would be difficult for me to pick a cache site that would be useful because I really couldn't predict where I would be and where I would be passing through. If past experience is any indication, I would NEVER be in the vicinity of a cache!
Ain't that the truth? Basically the reason I've never spent much time with making and storing caches.
Now, with respect to geocaching...
//smacks forehead
DUH! Thanks for putting up with my being obtuse. Part of the utility of a very small (but easy to get to) cache would be to hold small items that are potentially very useful but not necessary in an urban day-to-day existence (I mentioned water tabs and contractor bags, just to start the list).
But I'm still sticking with my 5 gallon buckets, especially since that helps my friends be prepared. I just hope they don't try to use gas in the alcohol stove...especially indoors.