AT THE HOTEL
The person at the front desk
It may feel awkward, but passing along a few bucks at check-in will usually get your room instantly upgraded at certain resorts on the Strip. Don’t worry. You're not the first person to do it. But nothing’s guaranteed, so keep that in mind if you're in town on a busy holiday or big fight weekend.
So, how much? $20. If an upgrade truly isn't available, that cash will probably come back to you in the form of other perks.
The bell hop doesn't just help you with your luggage when you check in and out of the hotel, he's also the guy who'll bring anything you may have delivered to the hotel or need from the front desk.
So, how much? $2 a bag, and/or at least $5 a trip to your room.
You know how messy you are, so you know that whatever the people cleaning your room are getting paid it isn't enough.
So, how much? Make sure to leave at least $5 in the room for housekeeping before you check out. Leave more if your stay was more than two days.