Much like the water-soluble packets of dishwasher detergent powder, Clorox powder dissolving packets would have a huge market for laundromat users who don't want to bring a whole container of Clorox along for the commute. Drop as many dissolving packets in a sealable bag as you need and leave the rest at home.
Also, it would be a much simpler means of measuring detergent for a load of whites than pouring liquid or even powder into a measuring cup. Perhaps each packet could be the recommended amount for 1/2 load. Then one could plop four packets into the water for a double-load and the measuring and adding is done.
Finally, we have all ruined a nice pair of jeans or other article by spilling liquid or even powder bleach on them in the often cluttered laundry room. The water-soluble membrane that holds the detergent shouldn't allow any discoloring for clothes that it is dropped on or accidentally stored with as long as there is no moisture present.