You don't need to buy fancy fabric-covered storage boxes. Raid your closet for an attractive array of shoe boxes, which can hold photos, stationery, or old letters, then stack them on your bookshelves. Combine them with hat, shirt, or gift boxes in other sizes. Affix labels noting the contents; create consistency by using the same labels and ink color.
RS Tip: Use sturdy boxes in the same or complementary colors, with matching lids.