Walmart offers two Orion 4-Shelf Bookcases in Black, model no. 42344, for $47. Opt for Site-to-Store pickup to avoid the $4.97 shipping charge. (Orders over $50 qualify for free shipping.) That's $23.50 per bookcase, tied with last week's mention, and the lowest total price we could find for this pair of bookcases. Each bookcase measures 25" x 9.5" x 47.5" and features a protective kick plate, adjustable shelves, and back panel.