<p>D has used it for two summers. I can’t recall how far in advance she made arrangements, but she’s not much of a planner, and I wouldn’t be surprised if she just walked in to the UPS store and bought the boxes the same day she packed. The first time her boxes were not delivered to her new dorm on the promised day (somehow they had gotten sent to the wrong school—they are stored at some central UPS location, not at AU), and she had to borrow sheets and towels from her roommate for a few days. The next year it all went swimmingly. The convenience can’t be beat. But I wouldn’t store anything that is absolutely needed on Day 1, just in case of a delivery glitch.</p>