Italics again

Theresa, was it you that mentioned the problem with Courier and italics? Or someone else?

Anyway, here's a link that states categorically NO UNDERLINING in a manuscript.

And a friend just emailed me asking, and I had to agree that I too am an "italics only" advocate. However, at the RWA conference, someone (maybe not Theresa, maybe yes, but you know, that was probably after several drinks, and ...) said that in Courier, the italics doesn't look much different than the regular font, so it's better in Courier to underline. (Yet another reason not to use Courier. :) Have you guys heard that?

Also, any thoughts here? Would you use italics for some things and not others? To emphasize a word, maybe? Or underline foreign words? Or what?

And what about this Courier thing?

Alicia