I generally take this approach with such things as glasses, coffer pots, toilet seats, handles, and dishes: If I didn't clean it, it isn't clean!
Especially with dishes, I don't trust how well someone cleaned them. I also don't trust if the previous guest might have handled the dishes and then put them back. I also wonder about the extra towels. They don't wash every towel do they? What if a used towel got folded and put back? ewh! I wish the hotels would get a shrink wrapper and wrap everything after cleaning it. Just like on the plane - they shrink wrap the blankets so you know that on the previous flight, someone didn't use your blanket to blow their nose.
I always where socks in the hotel room and I never get into bed without anything other than sheets next me. I only sit on the bedspread if I have my street clothes on.