^ While I work on top of a PokeStop and can drift between a few more. At least twice everyday I delete 150-200 items from my 600 item storage and then recollect.
I however have come close to running out of regular Pokeballs during times when I am not at work as I continue to "just press the button" and even the few heavy PokeStop areas I go for walks in, aren't enough to replenish the stocks (though having 150 Ultra Balls means I can still catch, I just have to do it manually.