Container Store coupon for 20% off
Remember to add the promo code after you add an item to your shopping cart. Below the total but above the checkout button will be a link to enter the promo code. That way you can find out if the discount applies.
The Container Store, AKA, the mother of all organization outlets, currently has a promotion for 30% off Elfa products and off Elfa installation, but you cannot use the 20% off coupon on top of that sale. Bummer.