Heeeheheeeeee.....
I never locked myself out of my own car ever before, BUT, I still
keep my car keys separate from my main bunch of house keys. And in
this main bunch, I have another duplicate car key just in
case.
And as secondary backup, I keep one singular duplicate inside my
wallet, plus another I hide around the exterior of my car.
I can NEVER get locked out of my own car!
Unless I suffer Amnesia!