Murai Lab, one of the popular internet research labs of Japan founded by Prof. Jun Murai, the father of Internet. The lab is a two story building where the ground floor consists of the network operation center with meeting halls, secretariat room and online class multicasting center. The upper floor is the research center where at least 8-10 researchers continue research on especially new internet technologies with latest IP addressing mechanism: IPv6. 
I am writing here just about how the efficiency of office work increase and save the energy of one when you gonna meet your senior/boss/professor or whoever without moving from your table. Guess, in Nepal, what happens if an office has five story building where your boss is on the top floor and you are in the ground or middle floor, almost time to discuss with boss, either you have to use lift to meet him/her any time when he/she calls or use the steps. What if, you gonna meet 8-10 times a day. May be we need more energy for it and time consuming too. Instead of this, we can use phone conversation but sometimes phone conversation only is not effective. Sometime due to concentration in other works may not make the phone conversation fruitful. Hence, either video call or face to face meet is necessary.
So, for time and energy saving in office work, you need to have following: