Whenever I go through the contents of my wallet, I always find a few plastic hotel room keycards. I know you’re not supposed to keep them but I often manage to accidentally. Each inactivated keycard is a symbol of an experience, one specific, unrepeatable moment in time—a New Jersey snowstorm, a Seattle conference, a Baltimore fling. Every small, cheap, rectangular bit of logo-boasting plastic in my wallet serves as a reminder that, for at least one night in my past, I was somewhere different. But my nostalgic bit of plastic is about to be a thing of the past.

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