So what are they? I have never used a foam gun but read about it here and everyone says they're great. I'm just wondering what do you use it for? Don't you still have to wash the car afterwards like you usually would? I'm not talking s@%& about it I just dont know what its for really. People use it and let it sit for like 15 min or so, does that help? I have read about them on here but dont really understand the purpose. ONCE AGAIN NOT TALKING S@%$ ABOUT THEM, JUST DONT UNDERSTAND THEM. thanks