Thread tension for sewing

Here's the information I was telling you about that has been helpful to me for years, mostly helpful in quilting, but sometimes in general sewing as well.

"If you can see the top thread on the bottom, then the bottom is too tight (and pulling the top down). If you can see the bottom thread on the top, then the top is too tight (and pulling the bottom to the top). So, see the top? Either loosen the bottom or tighten the top. See the bottom? Either loosen the top or tighten the bottom. "


Righty tighty, lefty loosy.