How to shop at Costco without a membership

Google Express is very similar to Instacart, but it offers free delivery if you spend over $35. You don't need a Costco membership to use either grocery delivery service.

Members are allowed to bring up to two non-member guests with them when they go to Costco. However, only members can make purchases, so you'll have to pay them back for whatever you buy on your trip.

Costco Cash Cards can only be bought by members, but they can be used by anyone at any Costco store in the US. The cards go from $10 to $100, with a $25 minimum if you buy online.

You could also ask a member to buy you a $10 Cash Card in person and then complete the purchase with a debit card.

If you're buying something with your Cash Card online, you'll have to pay a 5% surcharge over the posted price.

If you live with a member or work at a company that has a membership, you'll be able to use their member cards to shop.

You don't have to be a member to shop on Costco.com, but without a membership you'll be charged a 5% surcharge. Unless you spend thousands of dollars, the 5% surcharge ends up being less than the membership fee.

In some states, alcohol sales can't be prohibited through a club or membership. Depending on the laws in your state, you can tell the Costco attendant that you're purchasing a non-member product and you will be allowed to shop there if you're buying alcohol.

Like alcohol, prescription drug sales can't be limited through a club or membership, so anyone can use the Costco pharmacy to fill prescriptions and buy over-the-counter medication, which could mean major savings.

Even though you need a membership to buy glasses and hearing aids at Costco, you can get flu shots and eye and ear exams without a membership.

The food court is open to members and non members — and it's crazy cheap. A large pizza is only $9.99, and the hot dog and soda combo is only $1.50.