They routinely refill personal toiletries, (if your toothpaste is nearly empty they get you a new one), the in-house bathroom amenities are exceptional, and they provide an eyeglass cleaning cloth if you leave your glasses on the nightstand or bathroom counter, again, something I have never seen.

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Soap, warm water and a dry cloth are all you need, once a day, to keep glasses optimally clean and functional.

WSJ: How to Clean Your Glasses Properly