Join me and explore packrat
On the appointed date, a truck delivers the pods to your house. You fill them at your own pace, then call the company to pick them up. When you are ready to have the pods delivered to your new house, you call the company, and they deliver them to whatever address you specify. You empty them at whatever rate is most convenient for you, then call the company again, and they come and take away the empty pods. You may not even need to be there when the company brings and removes the pods.