I might be taking a Caribbean cruise on the summit this fall. If I have the penthouse or royal suite, how much would a proper tip be for having your breakfast brought to your suite? I'd like to make sure I give them a good tip and not seem cheap. Is twenty dollars enough or should it be more?
The automatic gratuities added to your shipboard account cover room service, and when in a suite your butler would serve it, and you are paying an automatic tip for him too, added to the base auto tip. So to answer your question, don't tip anything. If your butler did a swell job then just give him a little extra at at the end of the cruise.
"Stateroom Services" is listed as covered by the Celebrity automatic gratuities. I'd put room service in the category of a stateroom service, but regardless, the 24 hour butler service includes serving breakfast, lunch, and dinner in-suite and suite guests are specifically paying more in the auto tips for the butler.
I don't think the additional amount is that much therefore wouldn't really cover room service. Most of the time it is someone from the kitchen who does the delivery and if the butler actually brings it to the door, he didn't get it from the kitchen himself.
Although not mandatory I would say tip the room service delivery person. They are not part of the pool.
The easiest thing to do is to see who brings it. If your Butler brings it, that tip is provided with your stateroom service. If you feel at the end of the cruise that he deserves extra for everything he has done then a tip above and beyond his service would be appropriate and only you can make that decision.
If your breakfast if brought by someone other than your butler than it would be appropriate to give them a couple of dollars at the time of service. I personally would never give them 20 dollars each time, for me $5.00 would be the max.