Exhaustion..

I was reading an article about exhaustion on WSJ today and could very well relate to it. I am very exhausted many days after working continuously from the time I get up. Chintu is an early riser (sometimes as early as 4:45 AM :) ). From then on its getting things ready for the day, working and jumping between meetings in the office, playing with Chintu back home, feeding him, bedtime routine, preparing and having dinner and the list goes on...In between this I have to juggle the doctor's appointments and what not! I am not saying this happens every day but many many a days. Even a good night's sleep does not help many times..
My question is, how do you deal with exhaustion? What do you do to relax? ..I used to do yoga, listen to music, enjoy the garden etc...but who has the time now?! So, looking for interesting tips :)
-Dee