Over the years, we had lived in places with little storage...being creative was a necessity lol. I have turned couches sideways covering a corner, mounted a corner shelf behind it on the wall and in that corner were storage items that were hidden. I have place book shelves on top of chests of drawers, anchoring them to the wall for additional storage.
If your kids are young, put some of your things on the shelves of their closets, if they aren't using it.