Paying Vendor Invoices via Credit Card

[system]

I am looking for a way to streamline payments to vendors via credit card. Currently our process is: enter a PO; receive the goods from PO; create Invoice; issue debit memo to negate invoice resulting from the recipt to inventory; create miscellaneous Invoice to post credit card payment. Since there are multiple vendors, multiple card and several purchases monthly, this process requires literally dozens of transactions for each monthly credit card statement. Does any one have a better method or suggestion(s) on how to improve this process?
I am using Vantage version 6.1.536. (I do not have any of the add-on modules e.g. money management.)

Thanks

Stan