If you are looking for dividend stocks that you can count on, you'll want to focus on consumer staples Dividend Kings.Most retired dividend investors want to find reliable dividend stocks. That's actually not as hard as it sounds, though you may have to give up a little yield to get the best of the best into your portfolio.What are the best of the best?Coca-Cola (KO 0.12%) and Walmart (WMT 0.96%) fit the bill. Here's how you know which ones to buy and when. Mixing two dividend poolsThe list of Dividend King ...