That's what I do with postcards that I receive, or collect. I get a notebook...3 ringed binder I guess they are more accurately called, and some clear plastic holders to slip them in that snap into the binder.
How many cards do you have? It seems a shame for you to buy a whole box of the sheet holders for just a few. I need to send boxes out soon, including to you. If you would like, I can send you a few sheet holders for the postcards.
That's nice of them to offer the rides. When you aren't feeling your best, if it's cold or rainy, or when it's really hot in the summer, that would be nice. But, I can see you wanting to walk, weather and health permitting.
Have a wonderful week!
Love All Life; Thank You For Posting! :)