Laundry balls are placed in with your clothes when being cleaned and are meant to replace harsh chemicals while still providing all the cleaning power needed.

These products look good and if their claims to reduce chemical use and clean just as well as store-bought detergents is true they should clean well and save money - but I don't know anybody who has directly used them. Do they work as advertised or is this another case of a products that is too good to be true?