Well hey, if anyone likes using menstrual cups and thongs, then that's great, go for it I say!
For me, thongs feel like unpleasant major wedgies, tried them, hated them. I don't happen to get wedgies with my regular panties, maybe I'm weird? But more power to anyone who likes thongs. I think they look a bit odd but definitely look sexy in the ads. (Probably helps to have a younger smooth cellulite-and-lump-free body though.)
And after about 15 years of using a diaphram for birth control, I'm just not into pushing rubber cups up there onto my cervix anymore. Been there, done that, year after year after year. Thanks for the suggestions, but at this point of my life I'll stick with tampons and pads until I hit menopause (which could be anytime now).
Incidently, while all the neighbor women I knew were using Pampers for their babies in the early 80's, I was washing my 2 babies' cotten diapers out daily by HAND in the laundry sink and hanging them up to dry in the sun.

What I REALLY find environmentally offensive are the thousands of various plastic "All Natural Spring Water" bottles purposely thrown on the sides of the road these days. They are EVERYWHERE. How can people who are supposedly health conscious be so oblivious to strewing their garbage all over the landscape??