Tell Us Tuesday #3

We just had a GREAT visit from Tom's parents over the weekend.

I'm going to borrow something my m-i-l suggested for TUT#3. She read somewhere that it would be a great idea for a person just starting adulthood to begin studying a subject they're interested in so that by the time they retire, they'd be an expert in that subject. She said she wished she had done that, but has no idea what subject she might have chosen.

This reminded me of the late Tony Randall, who became an expert on hummingbirds.

Tell us what subject you would choose to be an expert in.