If you you do planned reality checks throughout the day, When do you do them?

I am a high school student and I am trying to decide when to plan them thoruoghout the day.
So I am thinking something like

Wake up. ( Iv'e tried this really hard for me to remember)
walk out door
Bell rings to get ready for class
Every time a bell rings inbetween classes
Get off of bus.


Any good Ideas?

Edit: sorry for Wrong forum, but you know reality checks are involved in attaning lucidity.