How rooms ought to be set up for talks at conferences:
* All the rooms close to each other, so people can switch sessions
* At most 5 chairs between aisles
* Wider chairs (or spacing) - seats shoulder width apart for full-grown adults
* Robotic cattle prod attached to timer to guarantee talks end on time
* Magical cord-free laptop recharging thingy under each chair
Okay, I added the last two bullets later. But I think they're good ideas.