Sorry this isn't vagina-related, but might be helpful for a lot of people...
I was cruising around on one of my favorite websites, omg-facts.com, and there was one fact that DEFINITELY interested me. It said "make a fist with your left hand, squeeze your left thumb, then put your right index finder down your throat. NO GAG REFLEX!"
I tried gagging myself with and without squeezing my thumb, and I definitely only gagged without squeezing my thumb. I looked in the comments on the fact and a lot of people were saying that it's just a placebo effect, but even though I conciously know it could be the placebo effect, it still works for me!
What do y'all think??