I appreciate how difficult all this can be as I have moved twice in last 6 years, first with DH from large 4 bed house to 2 bed Park home, luckily we had a spare room & garage so could take anything we weren't sure about & sort out later.
My move 2 years ago (after death of DH) was harder & finally quicker, cash buyer, move within 3 weeks, no home to go to.
Luckily I was moving to be nearer DD so 2 weeks accomodation no problem. Little time to sort out as I was putting everything into storage. Removal Company packed my ornaments, china & glassware.
My DD, her OH & I sorted everything out from storage unit to my new home (1 bed Park Home), sold, Charity Shop, re-cycled or "tip".
My advice would be with photos, if you're having a storage unit, take all of them (save time). Take your DH's clothes to a Charity Shop (hard I know) & try to sort the rest as well as possible. Some excellent suggestions on here. I hope you get through this difficult time
What is a reasonable minimum spend for an online grocery delivery??