Learn more on portable storage
Then you load the container with your things. But you can do this at your own time since most companies will allow you packing your things at your own pace. Also, you can have additional containers but pay only for the ones you will use from reputable companies. This means you will not have to worry about being charged for unused containers or for ordering less than what you might actually need. Then after filling up the containers, you can just call the company again for pick up.