Great tips. I too use the Ikea Trofast systems. I have two multi level ones. I bought Jake and the Pirate ship Bucky and the sailwagon. Immediately after I opened it and took everything out I started looking for and counting the little things you put in the canon and had lost two before I did anything. I've searched high and low as I'm a fanatic about losing pieces. Lesson learned. Never open packages with little ones around. I should know this by now.