Once you open an account, you will be given numbered checks imprinted with your name, address and account number so that you can write checks against the balance in your account. This allows you to keep track of your money. Also, it is a violation of the law to knowingly write a bad check. Be sure to have sufficient funds in an account to cover the amount of every check written. Some type of checking account is virtually a necessity.
Checks allow payment of bills without having to carry large sums of cash.
Most businesses in Connecticut will accept checks if the account is with a local bank and the signer has some identification to show. Banks usually charge a few dollars for printing such checks. When cashing a check one needs some form of identification, usually a driver's license or university I.D. with picture. Checking accounts generally are not free. Most banks charge a monthly service fee for processing checks.