Do a Walk Through as an Attendee.
Once your event is finalized, step back and walk through the event as an attendee. Read the signs, registration material and plan out a schedule. Make sure there something in each timeslot for every target audience type. Walk from room to room to make sure the room numbers are correct and easy to find. Check for signage to make sure everything is marked properly. This will also help you figure out where you need to place volunteers. You want your attendees to get from session to session stress-free.