Many people do not make full pots of tea anymore but make it cup by cup. I do that as well, I used to make full pots of tea but now I make them cup by cup. 

Unfortunately many people still  boil water for a full pot of tea while they meant to make water just for one or two cups. What a waste ! Before boiling it might be an idea to weigh the kettle on a 10 pounds kitchen balance. Throw away the water that you don't need and you will save time and money. 

Another tip: realize that you can not drink tea that has just boiled, that is too hot. Before drinking you could add some cold water to it. So you can boil less water than you need for one if you add cold water to the tea in the end. You don't have to wait anymore for the tea to cool down. This again saves time and energy.