If something changes, you won't have to wait to be contacted. Find out when the last shipment goes onto the trailer. This will give you an indication as to when they will be departing for your new home. Find out as many details as you can prior to the driver leaving your residence. If the driver attempts to give you a delivery date, keep in mind that it is really only an estimate at the time of loading.
Many factors can change the schedule for the driver, so try to remain flexible.
Ask the driver to call you with changes so that you can adjust your plans accordingly. Take one last sweep of the house before the driver leaves. Look through all closets, shelves, in the garage, attic, crawl space, storage unit, under the stairs, on the walls and any place else things may be hiding. You do not want to find out, after the driver is on the way, that something was left behind. Give yourself a pat on the back to congratulate yourself on a job well done.