I have a variety of wallboard wounds to repair. There are some cracks,
dings, screwholes, and a hole that's about 1.5" x 5". I find on the
hardware store shelf "Vinyl Spackling", "Lightweight Vinyl Spackling",
and "Patching Plaster". I already have a big tub of joint compound.

What's the difference between Spackle and Patching Plaster? The labels
are almost identical. Why would I choose one over another? Can I use
joint compound for these repairs?