While this may seem like just another thing that’s added to your plate, make copies of all of the keys before you move. In all of the chaos of the move it would be easy to misplace a key, and that is the last thing you want to deal with on your moving day.
It is best to pack your valuable possessions separate from other things. This way you will be able to keep track of them.
Make sure to choose a date that makes sense for you. You don't want to cause yourself stress unnecessarily.