What undertakings are you currently doing to improve your playing?

Lately, sheet music. I picked up a few classical and Spanish guitar books from the local library and have been working on a tune here and there.

I learned to read notes sometime in the mid 80s but I've always been slow. I also never really got very good at finding notes on the fretboard quickly. So far it looks like this is doing wonders for both as well as putting some thought into chords and harmony. That will be another thing to focus on eventually. Among many.

Also, I bought a nylon string acoustic that's older than I am and only fairly lightly damaged for quite cheap, so there's that. See, GAS had to be involved somehow.