We end by making an appointment for next time. My T will say "we should schedule for next time..." or he will just get up and go to his desk to get his appointment book. Towards the end of the session he stops responding to anything "new" I might bring up, like a new topic cannot be introduced with only a few minutes left. He's never said this, but he doesn't respond, so it must be his rule, LOL. Sometimes he'll say let's pick up on that next time (but we never do). I also tend to not want to introduce anything big and hard if we have less than 20 minutes because I don't want to get stuck with "no time left" on something super important. When I have introduced a big topic with too little time left, I leave feeling very dissatisfied, so I have learned from making that mistake.