Warhouse Equipment and Supply is awesome. My company uses them frequently for heavy-duty speed boxes, shrink wrap, hand trucks, moving dollies, and a bunch of other stuff. Their staff is super friendly, they easily handle call-in/pickup orders, and their prices are reasonable.
Picked up packing supplies that I ordered by phone recently. Order process was easy. Price was inline with competition. Items were ready when I arrived for pickup. Staff was knowledgeable, friendly, and welcoming.