Don’t Buy- Ground Coffee
Who else thinks of coffee as a religion? Yeah, same here. Lots of people can’t start their day without a cup of coffee, and if you’re one of them, this is for you. While you’ll be saving money with a larger size, you’ll be sacrificing something important: the taste. Once the beans are grounded, they are exposed to air and therefore lose their flavor. If freshness is a high priority for you, you’ll want to go for a smaller sized jar.

Don’t Buy- Ground Coffee
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Buy- Gas
Even if all Costco’s warehouses would close down aside from their gas stations, it would be worthwhile to have a membership. The gas prices are great. Next time you take out your credit card, take out your Costco card as well.

Buy- Gas