Puzzled! - 2/9/20

One night a week or so ago I picked up my son from work and he told me he'd been thinking about writing a puzzle for me.  You can't imagine how happy that made me. It was like a Christmas,  birthday, and Mother's Day gift all rolled into one.   He gave it to me the next day and I had fun figuring it out.   I'm hoping we can work together to make a cache using his idea.  It's been a long time since we wrote a puzzle together.  I thought for today I'd re-share our first effort, from way back in 2011:

Puzzled, Ithaca Edition: 3/3/11

Tomorrow we'll ...