Make sure that students from your section leave the lab clean after disposing all the chemicals they used. If students from other sections leave a mess, promptly bring it to the attention of the other TA's. Give priority to the students in the class session if approached by students from other sessions for make up. Set up and attend a weekly meeting with the lab managers, instructors and fellow TA's. Timely feedback will improve understanding among the lab managers and instructors and keep the lab running smoothly.
Coordination requires effective communication.
Use the email as a tool to inform everyone of the status as and when things change. Enjoy the rich content of this class.