Maybe its just me but I've noticed more and more products coming in plastic or metal containers instead of cheap cardboard or paper. Lots of food related items. Like lunch meats that come in a tub with a resealable lid. Ground coffee in round plastic containers. Cookies in neat little metal cans and boxes.
I use them for storage or mixing of materials (paint, plaster, purple cleaner) that I trash after use.
Also more cool containers of all sorts can be found at the dollar type stores.