That Daily Deal offers the Stack-On Collapsible Stackable Folding Crate in Black for $14.99 with free shipping. That's the lowest price we could find by $10. It measures 15.8" x 23.6" x 8.8" and folds down to less than 1.75" tall.

Even better, you can buy three crates for $35.97 with free shipping. (That's a savings of $39.) Additional crates can then be purchased for $11.99 each as well.