Bedside storage in headboard. Put outlets in to hook up electronics and alarm clock
Home Organisation: Stairs doubling as drawers. If we ever live in a house with stairs, then this idea coupled with this: https://www.deriba.co.uk/DeribaWebsite/understairs/understairs-1.html is surely a must!
a hidden storage bin in the landing of the stairs for blankets for guest staying over or cold cozy nights on the couch.
Kitchen Pantry Storage ... wow, that would be a dream!