I've been putting Olive down for the night lately, and sometimes she just won't fall asleep before I leave the room. So to save hours and hours of time a week, I will sometimes just put her in her crib and wait until she's settled down, and then tell her that I love her and I'm going to be right back. Then I will leave the room. I've been surprised that she is usually ok with this, and just lets me leave... and then falls asleep on her own!
If she doesn't fall asleep on her own, then I'll go back in the room and work with her to get her to settle down more. Sometimes she will refuse to let me leave at all though, and on those days I just stay in the room until she's asleep.
Does your toddler ever let you leave the room before they're asleep for the evening?