This is easy. I have always wanted to play the piano. Money was tight when I was growing up, so there wasn't any left over for piano lessons (not to mention a piano). We did have a chord organ that I learned to play...that was fun. But, it also explains why I can only read the treble cleft!
I took a few classes in college and really enjoyed it, but again... no piano and it was hard to find practice time amidst everything else.
But, I hope this year to be able to start taking lessons. My husband and I have discovered The Great Courses and have thoroughly been enjoying them. AND, I discovered that they actually have a piano course! Now... saving up my pennies to buy a piano!!!
What about you? What skill do you wish you had?