Okay ladies, let’s talk menstruation. (Men, feel free to skip reading this post if it makes you feel uncomfortable. It’s going to get real.) We all know that buying tampons or pads can be really expensive. I’ve never added it up, but every time I was in the feminine products aisle at the store, I thought “Do they really cost that much?” Now, there is something to be said for buying them in bulk and buying off-brands, but today I…