How much are you suppose to tip on a Disney Cruise?

lakecity21 asked:

I am hoping to go on a Disney Cruise next year. I have been figuring how much it will cost. I called Disney Cruise line and asked how much they recommend to tip everyone per day. Since I am considering a 7 night cruise they recommend $76.25 per person per night. For two people that is $1067.50. That is more then half what the cruise cost. Does anybody actually tip that much?
I am not trying to be cheap and I want to tip fairly, but that seems way too high.