You should have a customer comment card that the customer's requirements, mainly what I like or don't like to do anything, and you need to see the results of the replies.
You should have a customer comment cards. That the needs of most customers would want something like or dislike something. And you have to view feedback from customers.
You should have a comment card customers. That the demand of the majority of customers like, what do you want, what I like, and you have to see the back of customers.