Have any of you used that plastic saran wrap-type material for packing? I wish I knew exactly what it was called, but basically it's the same stuff that is used to wrap pallets, just in a handheld size. That stuff does wonders when it comes to packaging items that you want TIGHT. I'll use it over the bubble wrap and once it's on you can toss the item unboxed without it breaking. It's pretty cheap on ebay and would probably work really well on top of a bubbled SM.