M.L.
I've known enough people who worked at hotels or motels at some time or other to know how much they are NOT paid. Even the best worker is working for grocery money, or for enough money to pay for his/her child's orthodontia. So I tip if I can.
As I write we're spending a few days - as a gift from a kind person - at a very fancy hotel where I'm being spoiled rotten! Can I ever go back to Motel Sixes?? Our first tip was for the gentleman who brought up our bags (!) and then clued us in on everything around us, including the best place for a steak dinner (a restauarant NOT connected with the establishment!).
We tip the people in the coffee shop when we have breakfast (around 15% of the bill), and we will tip the housekeepers when we leave. We can't do very much, but we do something - the amount also depends on how many days we stay. For the housekeepers I also add a note of thanks (in two languages). I know what it's like to clean up after people.
If the service and the smiles are excellent, there may be a bigger tip. I'm a sucker for a kind word and a friendly smile. But I always try to leave something in any case. During most of our travels over the years, we've actually had little to complain about. The frown or the lack of a towel may come from the person's having been up all night nursing a sick little boy or wondering where her teenage daughter is. Rarely do I deliberately not leave a tip - the only times I can think of were when... but they're long stories and you wouldn't want those things to happen to you either.
I'll admit I'm considered impractical in this respect, but I'd rather do it this way when I can. And a little tip - even a buck, if that's all I can do - is better than none at all.