uncluttering one day and one thing at a time

I think in a timeframe that short, it's a good idea to have boxes or bags for trash/recycle/shred/donate or whatever categories you prefer and toss stuff in them that's obvious--but a full, in-depth, careful evaluation of ALL THE THINGS is probably too much to get done on top of packing in that kind of timeframe. But--even if you only get rid of some of the obviously unneeded stuff in the packing process, that's still less stuff you have to move and less stuff to go through while you're unpacking.