Dining room waiter $3.50 per day, per person =$24.50
State room attendant $3.50 per day, per person = $24.50
Assistant waiter $2.00 per person, per day = $14.00
Total per person for the week =$63.00
So if there are 2 of you, the total would be $126 approximately... you can always tip more or less (a little extra is always appreciated, of course, for extraordinary service) depending on the level of service you feel you receive. These tips can be handed out directly, or put on your shipboard account, then RCI will distribute them accordingly. Bar tabs always have an automatic 15% gratuity added. Its customary to tip a few dollars for room service, baggage porters, and the like. Occasionally the head waiter will do something for you, a tip is appropriate in that case.
If you want really good service, you could pretip your room steward. We have read suggestions of using prepaid phone cards as a pretip. We tried it on our CCL Celebration cruise and hardly saw our room steward.