Re: a little something in advance??
If you decide to tip upfront (and many people do) you might find a small service that you wish to ask performed and while handing them your tip say "Do you think you could have cookies in our room each evening" or whatever you want....
If you don't have anything special you are asking for, you can always just hand them the money and say "We're glad to meet you and are really looking forward to a great week."
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