Shaving Cream: What do you use?

[belladoggy]

So, I've heard it said that it's actually better to use men's shaving cream because it costs less and comes in a bigger bottle and, aside from scent, is really no different than women's. At the moment, I'm broke and jobless so I can't afford to buy any, but I've been using shampoo as a substitute. I've heard conditioner could work, too. What do you girls think? Do you have any money-saving shaving cream workarounds or substitutes that you favor?