Why do you feel you have to order the containers? I haven't ordered any WS containers in probably 15 years and my customers don't miss them. Few if any even request them on outgoing.
The sooner you make the break and start educating your customers the sooner you won't feel obligated to order those @@@@ containers. Although I must admit we still have 'fond' memories of the TF Gravy Boat that has now been the white elephant gift amongst family members for at least 25 years. I don't think TF intended it, but it's the gift that brings laughter to our Christmas' year after year!