Share 'Free group tennis lessons ... Anyone interested?'

OK, I got inspired by the joy of tennis abundant in these postings (and those who responded to my post looking for a hitting partner).  I lost my zest for competitive tennis long ago, but still enjoy getting out there.  I used to give free weekend lessons to friends as an excuse to get together, get outside, and get some sun (this was sometimes rare in DC).  So I'm new to this place but am thinki…