While working on this, make options to see ALL of the product details in different places. The Size can only be seen on the product detail page. The SKU only works to look it up in a sale, but not in searching products. And neither show up in any product reports.

Please add product size to the default view everywhere. Especially in Manage/Products view.

Many products have 3 sizes, travel, "normal", and liter. Seeing 3 identical products with the same name isn't helpful.