Waste management is a big problem, and it only gets worse as our numbers grow. 

The idea is to crate a standard packaging that is made of many interlocking tiny pieces. 

These interlocking pieces, however lose their grip with some stimulus. The whole thing dissolves in your hands. 

Food, for example, would come to us from industry in these packagings. The person would dissolve the packagings after consuming the product, store it somewhere and this would be picked up and sent back to the factories to make new packagings. It should be recyclable, somehow.