I replied to a previous post, but upon thinking about, the more annoyed I became. (Up On Soapbox) Hotel housekeepers are employees of the hotel, NOT you personal maids. They are allotted only a certain amount of time for each room, ex: stay over-20 min, check out- 30 to 45 min. And are given room assignments with those times figured in. In most hotel, when houskeepers are done with their rooms, they may leave. And in some, they are paid by the room, not the hour.
Do you live out of your suitcase? When little Johnny spills his cereal on the floor do you say, "leave it for the maid, that's what they get paid for" or perhaps if little Janey has an accident on the bed you just cover it up, not strip the bed. As a hotel manager, I have seen things in rooms that are beyond belief, and yet the "guests" expect the housekeeper to clean them up. Garbage on the floor, clothes all over the room, wet towels on the bed, food spilled on the carpet, feces and urine over the toilet, is this how you live at home?
And if housekeepers don't speak English, has any one called Housekeeping and asked for someone to translate their wishes. Also, how many of you would to clean rooms for someone else? Just because we're on vacation, does that mean that good manners are on vacation also. Each time I am on vacation, I telll my housekeeper no housekeeping for at least one day, all I need is the garbage removed and fresh towels. They have always been very appreciative and thank me profusely. Just a thought. (Off Of Soapbox)
Do you live out of your suitcase? When little Johnny spills his cereal on the floor do you say, "leave it for the maid, that's what they get paid for" or perhaps if little Janey has an accident on the bed you just cover it up, not strip the bed. As a hotel manager, I have seen things in rooms that are beyond belief, and yet the "guests" expect the housekeeper to clean them up. Garbage on the floor, clothes all over the room, wet towels on the bed, food spilled on the carpet, feces and urine over the toilet, is this how you live at home?
And if housekeepers don't speak English, has any one called Housekeeping and asked for someone to translate their wishes. Also, how many of you would to clean rooms for someone else? Just because we're on vacation, does that mean that good manners are on vacation also. Each time I am on vacation, I telll my housekeeper no housekeeping for at least one day, all I need is the garbage removed and fresh towels. They have always been very appreciative and thank me profusely. Just a thought. (Off Of Soapbox)

I don;t think it takes that much effort to remove the plug from the tub drain. We don;'t want to see your dirty water. Throwing your trash in the trash can is not difficult either. I never expected a tip. it was not customary then and I would not expect one now. What i did expect was a bit of consideration. I agree with the original poster.........asking housekeeping to remove trash and replenish fresh towels is a kind gesture. i appreciated that more than anything when I worked that job. You would not believe the look on the housekeepers face when I stay in a hotel and refuse service. I can make my own bed and take the trash bag out of the can and place my towels in a neat pile by the door. When I check out, I remove sheets and place them in another pile. From one who knows......30 minutes is not enough time to do everything expected. They even checked behind us to see if there were streaks on the mirrors 
Maybe I mis-read the card?
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. They have certain rooms that have to be cleaned that day and it can get very stressful for them to have all of their rooms completed by the end of their shift. So they may start a little early and will accidently knock on a guests door and wake them up. Majority of their guests is out of their rooms before 8am but a few guests sleep in and doesn't get out until mid morning. If the guests knows that they wouldn't be out of the room until a certain time, that guest can call the front desk or housekeeping and let them know what time they can come in to clean their room.
I usually travel alone, and only use ONE bed, so the other stays made up. I sometimes even make my bed, and wipe down the sink. 