Sex involves a lot of, well, fluids. So after you're done getting-it-on, you're left dealing with all of those fluids.
That's why a woman named Frances Tang in Costa Mesa, California invented a product called "Come&Gone" . . . a special sponge on a stick designed for women to do some internal cleaning after sex.
The instructions say, quote, "Just grab the handle, insert, swirl, remove, and toss." If you're interested, a 10-pack of the sponges costs $10.