I'd pay lots of money for a stylish watch or bracelet for my wife that would alert her to incoming calls and texts. She (like many women) keeps her phone in her purse and rarely answers because she doesn't know it's ringing.
https://www.google.com/search?tbm=isch&hl=en&source=...
Its a dongle^Wcharm thingy that plugs into the phone and acts as visible alert for phone state while its buried in a purse. Pretty funny toy.