Costco doesn't discount its memberships, so you won't pay less if you're a senior. You might benefit big time from savings on groceries, gas, and travel as a member. One of the nice things about ...

But if you're a senior who's thinking about joining Costco, here's some bad news. Costco, as a matter of policy, doesn't offer discounted memberships. If you want to join, regardless of your age ...