When you go to a garage sale or op shop, buy all of the cheap biscuit tins, tupperware containers, lunch boxes etc. These make great light weight, sturdy containers to pack items in and protect items from mail damage. Old DVD cases are another great container for packing items. You can use a bit of newspaper instead of bubble wrap in these containers. I have a couple of large cardboard cartons full of these, with different sizes in each carton. It speeds up packing random items.considerably.