I was so inspired by the quick results that I've now done the same in 2 more rooms! I've just cleared up the stuff that was lying around, and where things can't be put right away at least made them as tidy as possible. Works wonders. Then I can start to go through everything more gradually and do the decluttering and reorganisation that are also needed in some places. I feel much less overwhelmed. Now there's just one more room that's a disaster area, because stuff's been dumped there since before Christmas.