By popular demand, I am going to enlighten you plebeian plebs on the new-fangled way to use punctuation. I started doing it myself during junior high school, and although my teachers couldn't appreciate my brilliance I'm glad to see that it's actually catching on in some hip engineering circles. Behold!
Which of the following is correct?
1. I took my girl out to see "Oklahoma!"
2. I took my girl out to see "Oklahoma!".
If you said (1), you're living in the 90s! Maybe you didn't notice, but this is the future baby, and in the future we don't count punctuation that's part of a quote as part of the sentence that contains that quote!
This next example should help solidify the matter.
1. Did you see last night's episode of "Whose Line Is It Anyway?"
2. Did you see last night's episode of "Whose Line Is It Anyway?"?
Sentence (1) is for losers. You're not a loser are you?
"Hey wait," you ask. "What about dialogue?" Easy as cake. As long as the whole sentence is contained in quotes, you're fine. Don't be ignorant.
What about names that start with small letters, like French Foreign Minister Dominique de Villepin? Only commies have names that start with small letters. Here in future America, we capitalize what we want, when we want. De Villepin? He can take it up with the UN.
In the future, we also remove extraneous periods from acronyms. Get used to it.
Eugene Volokh writes about quotation marks more than 18 months later.