Home Hack: Silence a Leaky Faucet With a String
Yep, it's that easy. From Re-Nest:
"To quiet the sound of a leaky faucet, simply tie a string around the neck of the faucet and allow it to catch the drips on the way down.
This will allow your pipes to continue to flow freely and give the water something to cling to. Think of it as a mini slide for your H2O or better yet... a good night's sleep!"