Things to Prepare for Labor? Tips!

I was wondering if anyone knows of any traditional things that women do, drink or eat that are said to make pregnancy or labor easier? For example, I've heard that drinking raspberry leaf tea throughout pregnancy can strengthen the uterus and make for an easier labor. Also squats are said to help strengthen the pelvic floor muscles, which helps with labor and not peeing on ourselves after giving birth!! What have you heard? What do women do in your culture?