I'm glad I found this thread and how much some people tip!
Side note...I can't believe how inappropriate the conversation turned when the only question being asked was how much to tip. Honestly, can't believe some people. If you don't have the answer that someone is looking for, keep your mouth shut. That's just my $0.02...
Anywho, thanks to those who replied to the original poster. It helped me make my decision on how much to tip the SA staff at the end of our cruise. Further, I will probably have my daughters color a picture for their favorite SA staff on our upcoming cruise to Alaska.
Happy cruising everyone!