Many of you will probably think this stupid, but, aside from kissing my BP on the head and such, I've actually put her whole head in my mouth before (I like looking weird, take it or leave it).

Never have I felt sick afterward. I use my little bottles of hand sanitizer, but rarely after holding my snake. But ALWAYS after handling the mice and their dishes and whatnot. They are more unsanitary than my snake, if you ask me.