Recently I stayed at the Mandarin Oriental Hyde Park in London. I was in a really nice suite, and the service was amazing the entire time. Like over the top amazing; I felt like royalty.

There was a floor butler/concierge who made most of the magic happen. I've stayed on premiere floors at many hotels and had floor concierges that mostly I never saw.

So what's the protocol for tipping the floor concierge? A tip upon arrival? Departure? After every exceptional task?

As a New Yorker, I'm used to sticking my hand in my pocket to tip often. Europeans often have the stigma of not being so generous.