In addition to moving trucks, trailers and vans, U-Haul also offers a portable storage container solution called a U-Box. A U-Box is very similar to other portable storage container companies. The primary difference is, of course, the massive size of the U-Haul company and their ability to cover the vast majority of the United States, including Alaska and Hawaii.
One interesting thing about the U-Haul U-Box is that it is the only moving container solution which you can transport yourself. So, if you have a tow hitch and only need to move a single U-Box container you may find their solution both affordable and effective.