We, too, budget $25.00 pp/pd. But we are frugal people, and have been enough to know where to save, and where to splurge. We use traveler's cheques. Yes, some banks still sell them. One trip we lost the TCs the day we arrived, and it was just like the commercial. They were replaced the following day. All I lost was a nights sleep. I usually carry about $50, cashing TCs as I need them at the front desk. If we are going off property for a day of shopping, I might carry more cash. I like to be aware of how much I have spent and how much I have left, so perhaps we will splurge toward the end of the trip if budget allows it.
I like to leave at least $5 when Mousekeeping comes in. We only have them in once or twice during our trip.