One method to handle the one-of vendors is to create a vendor in Payables called, for example, MISC. Credit cards can be set up as 'Banks', where each credit card is represented by a 'Bank'. Paying these vendors using credit cards is as simple as paying by check. The check number would be the authorization number for the credit card transaction. It makes it even easier when using BankRec, as payments made to the credit cards can be made through BankRec as a 'transfer' from your operating account to the Credit card account. I have used this method in a variety of cases.