Hack: You don't need to be a member to shop at Costco. You just need a Costco Cash Card (gift card). You will need a member to buy a card for you tho, or you can buy one on ebay at a mark-up.
If you do want a membership, they occasionally have Groupons that brings the effective price down to like $20.
You just need friends that have a membership and pay with cash. They never look at the picture and it is such poor quality it could be anyone.
I’d borrow your membership but Druff said I’m not allowed to impersonate you anymore. Store policy