I prefer a regular time slot because it makes my life easier. I am busy, and I schedule months in advance. I also am really organized, and it just seems neat and tidy to me. The last t I saw for a few months was all over the place with the schedule, drove me nuts. I hate those little appt. cards too, such a waste of paper. (but yea, if the schedule changes sd is right, you need the appt cards in T's handwriting to prove yourself)