Although it's possible that the boxes you've held in your basement or attic for years are in fine condition, sometimes it's best to purchase new boxes when taking excess belongings to Suffolk County storage. One of the main reasons repacking is a good idea is that items have a tendency to shift over the course of a few years and if you've ever moved with your boxes and placed them on a moving truck that's missing its shocks, it's possible that some items could break during the move to the storage unit if not packaged correctly.