The lid organizer on the top left was a separate purchase last year, but also from Walmart and also by Rubbermaid. It was about $8. I think they still have it at the store. I realize the colors of my organizers do not match, but I'll live with it. If you are looking for something that you can purchase without leaving your home (and leave your sanity intact), you can organize lids with THIS product here from Amazon:
And if you're wanting to sort other pans, as well as lids, THIS rack is very handy.