Costco, Costco, Costco... people always ask which warehouse club to belong to. I have been a member of Costco since before I was married. I still remember it as Price Club! I always thought it was so cool that at the checkout one person would read the numbers and the other would enter it in. Ahh..the days before bar codes!
Costco has things that Sam's Club does not. I feel that their bakery is superior. I also like their meats a little better. Costco has more of their brand items as well.
They offer 3 types of membership- business, gold key and executive. I have seen them raise their prices over the past 5 years. We are on a membership with my family and business and our executive membership pays for itself as well as a few other memberships.
Costco has coupon books throughout the year that can give you even better deals on items. I also know that if you are looking for a deal, to notice in the price if the last number is a "7". I have found air freshners on clearance for $3.97, as well as other items for a great deal.
Their cafe has changed little over the years. We really like their food- except for their non-fat yogurt. It tastes like marshmallow fluff to me.
In addition, check out Costco's website. They have deals there that they do not have in their stores. My sister got her wedding invitations at a great deal online. Their travel section is pretty good too. Not great, but getting there.