Cellar room shelves - recommendations

As I said, it comes down to the Really Useful Boxes and a carton. Most items are not stored individually. There are certainly exceptions, but I can respond to that with an appropriate shelf. At the beginning, for cost reasons, I probably won't order all the shelves everywhere either. Otherwise, that would exceed the budget.

We have filled our garage with "Omar" from Ikea because, for various reasons, we did not want any wood.