Safe trip....get one of those old telephone coiled handset cords...connect to right wrist and key bundle in ignition slot.
;>)
The modern equivalent of sleeve garters, (the ones that went with green eye-shades).
You can see then at the bank. The tellers have to keep their keys handy, as they have to keep their cash-drawers locked when they aren’t accessing them.
Another version is an arm-holster for your allegedly smart phone. I’ve seen people who jog use these.
Good suggestions!