Just thinking about this some more as we moved a fortnight ago. I had plastic boxes - one with cleaning stuff (including a roll of black big bags), one for tea and coffee making including kettle, mugs and plenty of teaspoons, and one with things like a toolkit, scissors, torch, chargers, etc set aside which the movers didn't touch and which we took with us to the new place in the car.
Both times we have moved in the last six years neither set of movers packed the doormats so be ready to bung them in a bin bag as you are leaving - we have outside and inside ones by front and back doors.
This time I also had a box which any adapters, extension leads, remote controls, scart leads, etc went in so they were all in one place.
I also had a box clearly marked 'do not move - staying here' into which I put everything the people buying our house might need, so manuals for appliances, spare bits and bobs we didn't have any use for in our new house, the contact details for the window cleaner and alarm maintenance company, the food caddy the council provide (or it would have been packed), spare keys and so on.