I'm on my trip now. I'd booked into the Doha Marriott because it's close to the airport. But they're closing it for renovations a few days before I arrive, so they've moved us to the Sheraton Grand Doha Resort which is further away. We have 3 suitcases and hand luggage. What would be the best way to get there? Whether it's by ride share or taxi, I don't know how much to tip. I've never tipped anyone anywhere, as it's not an expected thing in Australia. I assume I tip in cash, and that there would be an ATM in the airport where I could get cash? Do I tip the people in the hotel?