Quote Originally Posted by theGinsue View Post
Haven't read the while thread. You will have the option to purchase a credit card type of passport in addition to the standard passport. Back around 2015 the cost of this was $25 (as I recall). This can only be used for traveling by driving or walking, not flying; essentially Canada & Mexico. You might not think you need it, but you never know what opportunities will come up and it's a good thing to have just in case.
Also via maritime transportation. My kids went on an Alaskan cruise with their grandparents and were able to enter Canada with the passport card.