Hi, Rick! This varies from person to person, however, we like to tip our Mousekeepers every day. You may not have the same Mousekeeper each day for the duration of your stay, so I like to make sure to leave my tip for the person who has kept my room so lovely, despite it having three rambunctious kids there!
We usually make envelopes out before we leave home with the daily tip enclosed, then we place it either on the bathroom counter - next to the sink, or on a pillow. We figure those are the places that get the most attention during the clean up, and the envelopes are not likely to be missed that way.
If you visit
www.themouseforless.com and click on the link on the left for "community", they have several designs you can print on your envelopes that will make them stand out for the Mousekeepers. They would never miss them with these brightly colored designs!
Have a wonderful trip!