I can have things that get "put away" i.e. in a container/cabinet/drawer/room IF that container will be something that I open and access at least every other day. Otherwise, things that get put away out of sight are GONE until I accidentally stumble across them years later.
Limited exception: if there is a tool or device or something that is so uniquely suited for a task that when presented with a task where it would be useful I will immediately think of the tool—and thus remember that I have it—I can safely store it away, as long as the place I'll put it is the first place that I'd look for it.