Not sure if legal or not......
I know someone who, when he gets his new license, waits a month or so, then "loses" it and gets another from the state. That way he has a spare un-expired license for emergencies.

Me, I carry my expired license in my ID kit, along with my expired passport, and a certified copy of my birth certificate and SS card copy.
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Our most important survival tool is our brain, and for many, that tool is way underused! SBRaider
Head Cat Herder