I have been doing saunas once a week. I drink tons of organic green tea to flush out other things as well. I feel bad after but within a few days I have an overall improvement. I wonder if there is a herxheimer reaction there too. I feel this way after a massage as well.

I try to not be deficient in minerals so my body won't suck up the bad ones.
I eat only certain fish and seafood, ones low in mercury
I use only Krill
And exercise too

This article is a good overview, and there is a list within it which fish contain high counts of mercury.
It talks about vitamin e. My doctor took me off e. She said it can be dangerous. I'm not sure why though.

http://www.precisionnutrition.com/all-about-mercury