I discovered that I have one copy of the Delta 32 mutation. Two copies provides nearly complete immunity to AIDs, but being lucky enough to have just one copy means that it will take significantly longer to get AIDS should I ever get HIV. Knowing that I'm resistant to noroviruses also makes me more comfortable about traveling.
I discovered I have a 7x risk of going bald, which wasn't exciting.
Beyond this, results have been too contradictory to make use of. Genetics are interesting, but our behavior has a much greater impact on our lives.