I am thankful for the ease of my life. I may complain a lot but I know I have it pretty good. I live in a country that doesn't imprison or kill people for their race or religion. I personally haven't had to endure a major storm or other catastrophe (knock wood). I have good health -- for the most part. I have a healthy child. The S.O. has a good paying job, and we have a good relationship.
Sometimes I forget how good I have it. I'm not saying people should never complain -- you can't just bottle everything up and be a Pollyanna. But counting our blessings is a good exercise. We all have things -- big and small -- for which to be grateful.