I've been in a league with some friends from my grad school days since 2003. We're now entering our 7th season.
As far as a second league, I've been trying to get into a steady year to year league, but have been unsuccessful so far. I joined a roto league this year with some people from another Internet forum I post at.
That's enough to keep track of for me.
I never smile if I can help it.... Showing one's teeth is a submission signal in primates. When someone smiles at me, all I see is a chimpanzee begging for its life.