When you are moving from one place to another, you need to remember and be particular about the little details such as the packing materials, the food on moving day and the like. These things may seem to be of little importance when relocating but the absence of such thing can cause real hassle on the day of the move.
Packing tapes, extra cardboard boxes and the like may seem not needed anymore if you are done packing. But this misconception can cause great hassle as you never know when something could go wrong, you can never tell which box might be dropped and the like. Being prepared in this little details is like going in a war in all confidence knowing you have all your weapons are safe and secured.