Skype has THE coolest function, which is a free no-overhead basic screen sharing function without any of the fuss of WebEx. It’s “Share your screen” under the “Call” menu.
You conversation partner can see your whole screen. Not lots of options, but easy as pie.
Why didn’t Kat and I know this at tax time??? Would have been much better than the convoluted scheme we ran to see almost the same screens.