Think you can pay full attention to your driving while on a cell phone? No, you can’t. Not even if it’s a hands-free cell phone. That’s why I no longer take calls when I drive.
Oh, and don’t bother playing Mozart for your kids. Products like Baby Einstein are marketing successes at the expense of the gullible.
These and other useful tidbits are found in the fascinating and very readable book The Invisible Gorilla, by Christopher Chabris and Daniel Simons. I highly recommend it.