Hey Cove, I know that feeling. I also cannot resist the champagne and red wine. And port. Oh dear. But I swear that taking Melatonin properly (you only need it for a few nights at most), along with plenty of water, movies at the beginning of the flight, setting your watch/clocks/phone to the landing time, not sleeping during the day you arrive, getting sunlight and some post midday walking outside where at all possible) will do the trick. After 25 years of international travel and a LOT of actual miles flown each year, I found Melatonin being the single biggest improvement to my jetlag fighting regime. BTW, recommended to me initially by a cancer specialist then okayed (for me) by my cariodologist!