Hi D. - I have the same setup. I considered the stacked setup, but decided to go with an elaborate wire shelving unit above my side-by-sides that has shelves to stack clothes, can come with drawers and has easy to move/adjust components that hang on verticals attached to the wall. I think we got ours at Lowe's or Home Depot and it wasn't very expensive. I think it could easily work for the space you described and you would have the added advantage of going down to the floor. I also think some of them come with counter-like boards that you can place across a waist-level space. I would have preferred cabinetry, but in my little, highly-traveled space I was afraid that it would make the room seem too cave-like above or below. (I think the bathroom vanity solution is a great idea, though, and am filing that one away!) The additional levels of shelving have allowed me to store large kitchenware/small appliances, large baskets of old towels & rags, laundry needs, bulk food items, bins of batteries, my bag organizer and more. I don't love that it's all there and visible to the kitchen when the door is open, but it's much more functional than before. When I considered the idea to get the stackable units, I was going to have a laundry tub installed since the plumbing was there. If we did, I was going to get a model where the sink had a removable lid that created counter space when you weren't using the sink. It was cool and I would have loved it! I've also seen people get large armoire cabinets with doors and put them in that space, but I'm not sure how that would go with the interfering door. Hope that helps! I dream of big mud rooms!