Definitely one box at a time. But to start the system going, allocate one entire day to working out how you are going to categorise and where to place things while you are sorting. After that, the enthusiasm will wane and 20-30 mins per day will be all you can face. Give yourself a day off now and again or reserve one day a week for trips to tip/charity shop.
That sounds like quite a good system. I might try it myself. I think I'll start next week!

Changing from a Manual car to an Automatic after driving manual for around 50 yrs
Does Trump have any manners….


