9. Never Buy Generic: Beer
The generic beer with "Beer" in black block letters on a white can isn't for sale anymore, although you can find it on eBay. Beer often doesn't translate well to generics. We say "often" because Consumer Reports recently found Costco's Kirkland Signature beers to be tasty enough to have at a party, although anyone who has been to a college party with beer knows that taste isn't a high priority. As with cheese and other eating or drinking items, with beer often the best choice is a brand.
We're tempted to add generic soda to this category, but that would contradict an earlier post about how soda is so much better with the brand taste. Again, personal taste is a major factor in such areas, so we'll leave it up to you to decide if generic soda is a no-no for you that doesn't have the same taste as Coke or Pepsi.