If you use a pullout, leave it pulled out. Some people strip the sheets and throw them in the tub (or just on top of the bed). I think that there is a
small chance that if the couch is all folded up, Mousekeeping will forget to check and change the sheets and the next guest will get a surprise, so we leave ours out.
We empty all the cupboards that had "our stuff" in it (but leave things in the fridge for Mousekeeping to toss, just in case the room doesn't turn over that day). Again, I think that there is a small chance Mousekeeping will forget to open up all the cupboard doors to check and toss - and you don't want my open box of Froot Loops. Plus, I'll likely find granola bars that we can take for the flight
We run the dishwasher.
We don't strip beds, in fact, I make them loosely because we don't want to leave a teddy bear or tshirt in the bed. Towels that we are using do go into the tub, but I don't move every towel into the tub, just the ones cluttering up the bathroom - again, this is more for me so my moisturizer doesn't get left underneath a towel.
Most of our tidy is about making sure we aren't leaving things behind, but in an effort to not leave things behind, the room gets tidied.