The biggest problem with the conversation I had today was that some people don't consider containing germs to be a priority for them. I understand that when you don't get sick often it's probably not something you really think about, but it should be, for the sake of others who may not be so lucky as you.
Anyway, it seems that the best way to contain a sneeze is to sneeze into a tissue, and then immediately throw the tissue away and wash your hands.
For the times when that's just not possible, the best thing you can do is to sneeze into your elbow. It contains the germs much more effectively than sneezing into the hand does, and since the germs land on your arm rather than your hand, you're not likely to contaminate other surfaces by touching them.
Sneezing into the elbow is a good habit to teach small children so they grow up learning the 'correct' way to sneeze. (How many times do you actually have a tissue and hand washing facility at the ready, for each and every sneeze? Almost never?)
And hopefully you don't fall into the quarter of people who don't bother covering their sneezes at all....
Before I leave in disgust, here's the guys from Mythbusters demonstrating the spread of germs via sneezing, and the best way to contain it.
Stay healthy, everyone!