To remember when next invigilating for an exam

Just finished invigilating for an exam. I realised that there are things I must remeber to do, have and bring when I next be the teacher-in-charge of an examination. Here's the list:
1. have a large functioning clock in front of the hall for all to see
2. put up a board to write any notices etc.
3. make sure tables for students are of proper size and height
4. go early and open all the doors and windows of the hall (or get the students to do it). Also switch on the fan and lights early
5. Make sure the sun rays and wind from the blowing fans do not hit directly on the students
6. escort the students who need to go to the toilet
7. bring a stapler with enough staple bullets
8. no pencil cases or computer covers allowed in the examination hall
water bottles allowed
9. time yourself well when laying out the exam papers - all should be on the tables 10 minutes before the exam begins
10. teachers are to give the name list of the students taking their paper at least a day before the examination
11. count all the examination papers collected - must tally with the name list.
12. different students take different papers - make a card with the students name and a list of subjects be placed on each table and a tick next to the subjects the student is taking. This will help in the distribution of the exam papers.