"Does this soup need more salt?"
"Which shampoo/toothpaste should I use, this or that?"
"Do I need this vitamin/mineral right now?"
I enjoy pretty good health, so I've just practiced testing everything I can think of that doesn't endanger me.
I have both of the Perelandra Garden Workbooks, and I'm planning a garden, so I need to gain confidence in the testing. It's very exciting, I'm enjoing it very much.