I have to be flexible with my tutoring students. A small group tutorial has set meeting and testing times. Individual tutoring sessions are more fluid. Most of the kids I tutor are heavily scheduled. Figuring out when they can meet with me can be difficult.
Luckily for me, I like flexibility and variety, but it does get confusing. I often check my calendars multiple times each day just to make sure I end up at the right time, right place.