Since installing our faucet aerators about 8 years ago, we’ve saved about $50 per year on our water bill–that’s $300 so far–plus more on our energy bills, since we’ve used less hot water too. We went from 2.2 gallons per minute (gpm) to 1.5 gpm. And the key is, you cannot tell the difference!
When you look for an aerator, make sure it is compatible with your faucet! This 2-pack from Amazon is less than $3 each, a low-cost easy investment.