I guess i was lucky ! i had a spare bedroom , i kept all my stock in there and did all my treatments in there , so at the end of the day i just shut the door on it and that was that !
As you say "boxes boxes "every where. We are lucky, we got in touch with our local council and explained that we had loads of cardboard due to dialysis and they provided us with an extra bin at no extra cost. We get them emptied once a fortnight. We also keep on top of them, when one is finished we flatten it.
But hey, having spare boxes all the time does sure come in handy for storage etc!