@Rolfe - if only I had done that…….(see my post on the ZS forum)
Oh dear. I'd have been in even bigger trouble because I don't think I'd have thought about the digital key, or actually known how to use it. One day when I was standing beside the car in a hotel car park wanting something from inside, and the key was several floors up and the app on my phone was refusing to connect, I trailed upstairs and got the key.
All of this is exactly why I hit on the bra solution.
Earlier this year, while I still had the Golf, I went to an opera performance in Glasgow, parking my car in a multi-storey car park. Got back to the car after the performance and couldn't find the key. Emptied my hadbag all over the bonnet, as one does, no key. Realised that the bag had been on the floor under my seat during the performance, and I hadn't zipped it properly. Although I had thought I'd dropped the key down to the bottom of the bag, obviously I hadn't.
Trailed all the way back to the theatre, which is part of the music college so fortunately was still open, got a long-suffering member of staff to open up, and actually
he found the black key on the black carpet in the deep shadow under my seat.
I had to have the Golf's key in my hand to lock it - I had to press the wee buttons on the side of the key to do that. Also, the key had to be in the ignition for the car to start. So squirrelling the key away somewhere inaccessible wasn't an option. But it is with the MG4. I started by putting it in an interior zip compartment in my bag, but as you just discovered, that requires you to be carrying the right bag. So I started putting it in my bra. Also handy if I'm not carrying anything at all. I don't trust the pocket of my jeans not to vomit its contents in inconvenient places. I've lost a bank card that way, and dropped my phone.
I wasn't aware carrying things inside one's bra was such a common practice until I read the article
@siteguru linked to. Other than this, I've mainly used it for things that either need to be warmed up in a hurry (frozen serum samples I wanted to test right now) or kept at blood heat.