Do you people really sneeze that loudly? I know some girls sneeze really quietly, and I don't know, I think I sneeze like a girl sometimes.
I close my mouth and plug my nose so the sound is very very quiet. If I plug m ynose wrong, it could come out like a horrible squeak like a freaking foghorn, but if I do it right, it's only as loud as my WD Raptor in seek (jkjk)
And yes I do know the problem about splattering stuff all over the place. I have had occasions where I'm typing on AIM and not fast enough to bring my fingers over to cover my nose, and it fvcking hurts when you close your mouth and let everything through your nose. Sometimes I realize that I don't want to go through that and I open my mouth since I know my hand can't get ther ein time, so I end up splattering all over my hand, much like how most people sneeze--your typical cover the mess + sneeze technique.
Otherwise, it's just put 1 finger across the nose to block off the nostrils and then close the mouth and sneeze.. Very silent, effective, good when you're in a conference, lecture, whatever it is... Plus no sticky crap.