Unless something was done that was out of the ordinary? Nothing. I stay DVC, usually in studios, a lot. I refuse to tip someone for coming into my room, replacing some towels and emptying the trash. Now, if I stay long enough for a full clean? Then sure, I may leave something. But certainly not a pp/per day thing. Why would I tip someone $3 a day for just myself?? That would be a tip of about $15 just for replacing some towels. That takes about 8 mins...I highly doubt the housekeeper is in my room for longer than 10 mins when doing just trash/towel service. If everyone did that, do you realize what that housekeeper would be making an hour?? In just one day, if a housekeeper services 5 rooms in an hour? Over $35 an hour. They already make, at least, $10 an hour and most make more than that!
Disney doesn't consider it's housekeepers to be a tipped position. Do I normally tip? Again, it depends on the service I get. I tend to make my bed before leaving for the day, I wipe down the vanity area, there may be trash to empty but that's about it. I hang up my towels, really don't need them replaced every day.
I now tend to hang out my 'privacy please' hanger.