There are plenty of lists on the internet that you could use so don't feel worried that you'll forget something. The school may also supply a list of recommended items as well. That being said, I will say that some of the necessities that people tend to overlook include the following:
Laundry Detergent/dryer sheets/fabric softener
Bar Soap/hand soap/hand sanitizer
Clothes hangers/laundry basket or bag
Food (Snack items)
Alarm clock or clock radio
With regards to the mini fridge and microwave, you might want to find out who your roommate is if you can so you both don't bring the same thing. Your dorm room might not be that big so having 2 fridges and 2 microwaves might not work. In addition, having 2 TVs may be a problem as well but you guys can discuss that too.