How to extreme coupon in PA?

I'm from Pennsylvania and I currently live at home and attend community college but this fall I will be getting my own place and transferring to university. The cost of my rent and tuition will be a lot to balance so I would like to learn how to extreme coupon for things like food, paper products, cleaning supplies, laundry detergent, dish detergent, body wash, shampoo, etc. I also have an iPhone, so if anybody knows of any coupon apps let me know!

You will always be better off buying no name brand and only what you need
always, always, always
use soap instead of body wash to save money
food with coupons is junk you would not buy ordinarily, and it's overpriced as heck in the first place.

equate walmart brand - get familiar with it
become good friends with mom and say things like "hey mom can i borrow some dish detergent"?