Here's One Way To Clean Your Pots And Save Your Sponge
Don't ruin a perfectly good sponge due to negligence. That's just wasteful.
Overall this worked pretty well for us. This doesn't work miracles, so don't get your hopes up. But it's a great way to not slave away at the sink scrubbing while you're wasting all that water.
Give it a try. Let us know if it worked for you!