Get a Tesla. Your phone is the key (and there's a RFID card you can keep in your wallet as a backup, should your phone die, or if you need to give a key to a valet.)
I've had a Tesla Model 3 for 17 days. Loving it. Haven't had to keep keys on me since.
PM me if you have further questions (I'd share my referral code here, but mods don't like that.)
Thanks for the advice! I was also thinking of house keys and a way of using my Watch as the key fob to get into the office.