If you are staying at least four nights, you will get clean towels and the trash removed on the fourth day of your stay (check in is day one). If you stay at least eight nights, on day four you will get a full cleaning. If you stay more than eight nights, you will also get a trash and towel day on day eight.
You can pay for extra trash and towel. I think it is $10 per day. You can also pay for full cleaning, that cost varies by the size of the unit.
Depending on the
DVC resort you are staying at, there will either be a laundry room at each pool area (OKW and SSR) or one in the building (BWV, BCV and VWL). There is no charge to use the washers and dryers, but you may have to wait to use them since all the studio users can use them and they are limited in number.
Bring your own detergent, dryer sheets, fabric softener, etc. You can buy it there, but it is about $1 per use.
There is a trash room on each floor if you need to remove the trash before they come to get it. At OKW and SSR, there is a trash room for each building.
Enjoy your stay. One of the nice things that I like about DVC is the fact that I don't have to worry about housekeeping coming into the room except for every fourth day.