When preparing to go to any casino I try to stock-up on Eisenhower dollars and two dollar bills. Both are readily accepted by servers and they tend to remember me better than most. I have actually had someone remember me four months after I gave them a large dollar coin by commenting to me, "didn't you give me that large dollar coin?". Nice to be remembered. The new smaller dollars are not as easily accepted but a lot easier to get. Now if I could only start drinking again. After a few waters I have to go to the men's room.