Do I need to register on line to be eligible to enter Cosco at 117th Street? Can I purchase this membership on line or in person in the store? Let me know,

Can't on line, just go yo store early and sign up the Executive Membership if you are in business and travel is best

Yes You Can

In person cannot enter with out one. Can't use someone else's card either

You can 100% do it in person on site no problem just tell them when you enter the store