Walmart offers the Whitmor 24-Pocket Over-the-Door Shoe Organizer in Pink, model no. 6636-1253, for $5.75. (Amazon offers it for Prime members for the same price with orders of $25 or more via the Amazon add-on program.) Opt for in-store pickup to avoid the $5.97 shipping charge. That's $2 off and the lowest price we could find. It holds up to 12 pairs of shoes.