It's a terrible idea. It absolutely wrecks your body, overpowers the ecstasy, and just wait till the next morning.
You're already going to be very up whenever you plan to drop your dose. You're going to be hot and sweaty as fuck and really happy. Throw alcohol into the equation, and, just off the top of my head, you could learn all about hyponatrema (you don't want to). Additionally, alcohol will raise your body temperature just as ecstasy does, so hyperthermia is a real issue.
Don't waste your money man, it's a bad idea all around.