Sad as it may seem, it is our dream to have a laundry room in our home. Right now we count ourselves among the denizens of the laundromat, but if one day we do have a dedicated room for laundry, it never occurred to us to store detergent as we would dry goods in the kitchen. We like the look, as well as the convenience for using bulk soap.
Besides soap, we're not sure what else there is to store in the other jars. One idea we had was to use one as a coin jar for all of the loose change that shakes out of pockets in the wash!