I always pre-pay the gratuities the way Dave described at the Guest Relations Desk. However, when I was on the Allure in February I never ate in the main dining room. I was so impressed by the different specialty restaurants that we dined at one every night. Each night we tipped the waiters that served us. Of course I didn't pre-pay the gratuities on that cruise. I usually wait until the second or third day before I fill out the pre-paid forms at the Guest Relations Counter.