7 things you probably didn't know you can buy at Costco (COST)

Ines Hegedus-Garcia/Flickr Costco is known for its bargains, but did you know it's also a place where you can buy a luxurious steak? The retail giant sells a number of items that you might not consider buyingduring yourweekly shopping trip. Of course, there are some staples you should always buy in bulk at Costco, like bacon and laundry detergents. But there are also some surprisingly pricey items that may make sense to sweep up at Costco, too. Here are seven things that Costco sells that you mi...