I would like to make a copy of my project. I would rather not start doing it from scratch by adding files and references, etc. Please note that I don\'t mean copy for deploy
Following Shane's answer above (which works great BTW)…
You might encounter a slew of yellow triangles in the reference list.
Most of these can be eliminated by a Build->Clean Solution and Build->Rebuild Solution.
I did happen to have some Google API references that were a little more stubborn.
Trying to reinstall the NuGet package of the same version didn't work.
Visual Studio thinks you already have it installed.
To get around this:
1: Write down the original version.
2: Install the next higher version...then uninstall it.
3: Install the original version from step #1.