SBRaider reminds me of couple of space saving things that I used:

I hung nylon hammocks along the bulkheads in the V berth aznd in the main Salon. I kept my clothes (rolled up) in the V berth hammocks. They are actually hung from the overhead and alongside of the hulls (bulkhead) on each side so that they were above and on each side of the V berth and thus out of the way.

I hung 1 hammock in the same fashion in the main Salon and kept towels, washcloths, dish towels, and odds and ends in there.

I hung a set of hanging baskets in the Galley area to keep my potatoes, onions, and other vegetables in.

On the towboats, we keep our potatoes and onions (usually on the fantail) in milk crates, suspended from the Texas Deck overhang.