Credit Cards For Business Use How Many Bank Accounts And Credit Cards Should I Have?

How many bank accounts and credit cards should I have? - credit cards for business use

I am currently studying at the university with 2 accounts (WaMu-JA-3 years and 1 years) and 1 credit card (Citi-1 year). I have always respected the needs of my checking accounts and credit cards to pay my bills on time. As for loans, I have about $ 10,000 of student loan debt. I wonder whether it okay for me to get another credit card. Moreover, many say they have many credit cards are bad for you. What is the work of the recommendation, how many bank accounts and credit cards should get my credit card? Thanks in advance!