If you really want to be cheap....
In Vegas, certain Terrible Herbst gas stations give you a coupon at the pumps for a free coffee or 32 ounce soft drink. I discovered you don't actually have to buy any gas... just insert your debit card and the option to print your coupon appears. Print the coupon. Go inside and get your fountain drink.
I discovered this after my free breakfast at Red Rock and then I did some Ultimate X vulturing. The very first machine at the 5-cent denomination had multipliers ranging from 2X to 8X on the next hand. It was ten play DDB. I put in a $20 and got back less than my bet. LOL