Another use for them:
I use the seatbelt to secure my purse when I am shopping. I link the seatbelt through my purse strap and lock it in.
Please keep in mind it is still best to stay by your cart and keep an eye on your purse. But, if you happen to be looking at something you won’t have to be as worried. It won’t be easy for someone to snatch your purse as they walk by.
One more thing, keep your zippers and snaps closed with any valuables secured inside. Don’t leave your purse open. Someone can “craftily” take your valuables without you ever knowing it.
Always Be Aware of your Surroundings!