Rather than tossing your dish sponge every week or so, get more life out of it. Run it through your dishwasher with the "heated dry" setting. Or, microwave your wet sponge in the microwave for one minute on high. Or, soak it for 5 minutes in a mixture of 3/4 cup bleach and 1 gallon of water.
If you decide to use the bleach and water method, get more use out of the water. Use the mixture to sanitize your children's plastic toys, clean your kitchen cupboards, wipe your floors, etc. Don't just toss it once you have cleaned the sponge.
