An equivalent of #6 seems to be the one I'm working on these days. For me, it's to not wrap up whatever I'm doing ten minutes before the appointment time so I can be All Ready For Them when they show up. It's to make sure I'm prepared for them to show up, and not deeply engaged in something I won't want to stop, but keep working (or whatever) till the phone rings to tell me my client is here. That's definitely helping me mind less when my clients arrive late or not at all.