Storage. We all need more of it. No matter how much room you have, an organized system will always top square footage.
Recently, I was looking for a way to clean up all the bottles in our liquor cabinet. It's not that we drink too much; in fact, it's the opposite. We buy specific products to try a new cocktail recipe. And we'll make it once, and end up with all this extra liquid to store in perpetuity until we can figure out what to do with it.