I also take a daily fish oil supplement for the myriad benefits (Google it, if you have to).
What do you do?
The three fundamental things you need to do is: eat well, exercise and sleep enough. Sleep 8 hours (yes, this varies from person to person) every night. Eat well, and get educated on nutrition. Don't believe the labels+marketing - just keep it fresh and simple. Exercise every day - it doesn't have to be anything intense...a 45 minute walk or a casual bike ride is fine.
The +2 are the two things you can do to have enough time to do the three above: don't watch tv, kill the long commute.
http://www.jamesaltucher.com/2011/02/how-to-be-the-luckiest-...
For me, it's getting up early, thinking about things I'm grateful for while I drink my coffee, then working out, then meditating, then hitting the day.
I got far too comfortable in my everyday life. So I joined academia and WOW! These days I'm actually working hard to keep my supervisor impressed - this hasn't happened in a while.
I'm outside my comfort zone - its a new feeling, its a welcome feeling.
And now for the answer you were looking for:
I start working as soon as I wake up. Seems to be the best time to concentrate.
as for the daily fish oil intake, i am a big fan of tuna fish in oil...if that counts for anything (who says it should be 'ramen-profitable?' tuna fish profitable is more healthy & tasty anyway!)