First, I agree...bring your own shampoo and conditioner. But, here is a hint. If you don't use Disney's be sure to put the soap and shampoo away in your bags each day. That way they will put out new. I've found they make great "trinket" gifts during the year. The kids just love them.
Second, at PORiverside, you can get a hairdryer but you need to request one. The same is true for a coffeepot. They do not provide coffee or filters so you need to bring your own. Also, bring your own cup for the coffee or you can use the resort mug, if you have one. You can also get a ironing board and iron. But, again, you have to request them. Upon arrival just pick up the phone and hit the housekeeping button. At that time you can request all those things and they will bring them to your room for your stay.