I figured that "passport" dealie might be a thing sooner or later, so I kept that little card they gave me that shows the dates of my two shots.
I may have to trim it down a little to fit in my wallet, though.
Hey, been there, done that. Pursuant to the instructions on my draft card I still have it, though I don't carry it around with me. I hope they don't find out. Haven't been asked for my draft card in a bar for about 55 years anyway.
Terry, 230RN