Here is something I came across recently that just makes a lot of sense in terms of packaging. If You Care is selling trash bags in a simple roll - wrapped with an outer band that serves as the packaging.
I thought this design was simple and brillant. It allows the company to include its brand & product info and it lets the consumer actually see and be able to feel the product.
Not only is the packaging very efficient the bags are made from 97% post-consumer recycled plastic. Not bad.
The bags are currently available in two sizes and are on store shelves now in the US.