Let me put myself out there because I suspect I might be able to make you ladies laugh. I am the woman who wears a thong during my period. Seriously, if you're wearing a tampon, it doesn't really matter anyhow! The thong liners are to help when my flow is really heavy just in case I leak a little bit. And personally, I thought that they were g-d's gift to women when they first came out!!!!! They are phenomenal. I also use them at the very end of my period when it's just about over and I'm down to the final bit of light spotting.
Yes, I am that woman.

I don't know how to function in a normal pair of underwear. During the day, I only wear thongs!!! (And yes, once you get used to them, they are perfectly comfortable, I swear!)