A political action committee and a principal campaign committee shall maintain a checking account, money market account, or other similar banking account and shall deposit any contributions received by such committee into such account. No expenditure of funds may be made by any such committee except by check drawn on such account, electronic transfer from such account, a credit card the balance of which is paid from such account, or out of a petty cash fund from which it may make expenditures not in excess of one hundred dollars ($100) to any person in connection with a single purchase or transaction.