I obsessively compulsively watch an American show called 'Hoarders' on an obscure channel called Bio. It follows two people per episode and they often fail to help the hoarder by the end.
I think it's shocking how just not throwing out stuff can cause such misery. The root causes are complex, and apparently the experts in hoarding want it to be classed as a psychiatric illness in it's own right.
It also demonstrates that housework is not a mindless waste of time.