Remember to enjoy yourself! It may not be particularly fun to have to move but if you stop and try to enjoy yourself then it will make the whole process go more smoothly.
While this may seem like just another thing that’s added to your plate, make copies of all of the keys prior to you move. In all of the chaos of the move it would be easy to lose a key, and that is the last thing you want to deal with on your moving day.
You will need to set up a forwarding address for your mail so that your mail go to your new place. You can do this on the USPS website.