Actually, we were told by the Mousekeeping Manager at Poly not to tip the Mouskeepers. The reason this subject came up: We left our room early (9am) one morning to head out for the day.......we came back late (10pm) only to find our room untouched, but the tip we left had been removed from the room. When we called down to the front desk they sent the housekeeping manager up to see the room and help get everything in proper order. I told him my biggest gripe was the tip we left was gone, but the room had not been touched; they had not even collected the dirty towels from the bathroom floor!!! That is when he informed us that those positions were non-tipped positions and the housekeepers were not allowed to accept tips.......he further explained that if policy allowed tipping of the housekeeping staff, some guests may not get proper service. The expectation, he said, was all guests were supposed to receive the same level of housekeeping and by accepting tips the CM's may favor one guest over another.
Sorry to be so off topic, but I just wanted to share a little factoid about housekeeping and tips.