getting credit card pay off this year

For me now it time to get my credit card pay up. Why do I want to get my credit card pay up? easy so I do not have a balance plus the interest is high plus I have the two credit card that carry a yearly fee. I got them to help me with my food cart business
plus the cards help me got my credit rating up. Now thank to those credit cards I now have two more credit cards with no yearly fee so the yearly fees credit cards are to be the first card to be pay off so I can cancel them if they company want my business they need to one stop the yearly fees , two lower the interest. then I keep them. why would I want to that? since I am trying to get my food cart business open the cards are good if I have to do a event this give me the working capital I need then after the event I pay the card off again.say for example a county fair the event people who put this on want the money way in advance so they know they will have food at the county fair and more. I know some credit cards say do not use the card for business use why do they say that ? Here the big reason they say that . They do not want to people to make money with their credit cards because then there will be no balance and the credit card company will not be making any money out of this and one more reason they are afraid that the person will pay off the credit card so again there will not be a balance. which is my goal no balance all credit cards pay off I know this will take time.Ok that it for now.