I even gave a talk at a Flex conference and got called out on the fact that I didn't know the right way to use some of the invalidation routines (which was completely true).

Instead, lonely people may need to focus more on getting out of their own heads, so they can actually use the skills they've got to form friendships and begin to find a way out of their isolation.

The only time you might want to use vinegar is if you've got blisters - a capful of vinegar and cool water can help dry out blisters.