Before you ask, yes I have put "tipping" with many different combinations into the search feature and didn't find an answer to my specific question. :)
The hotel I'm staying at has a free shuttle from LGA. I am assuming I will need to tip the driver, my question is how much? I am comfortable working out percentages and tipping bellboys ($1 per bag, $2 minimum), but I haven't ever really used an airport shuttle before. Is $2 or $3 enough? The hotel is literally across the street from the airport if that matters.
Half way through my trip I will be changing hotels, the second hotel is going to be holding my luggage for me for several hours until check in time. Do I tip the front desk people for that, or just the bellboy(person?)? Is that in addition to the normal $1 per bag tip?