I’ve written about the different offers from Plastiq to pay bills with your credit card (they chrage your card, mail a check to your payee). My favorite offer is 1.5% fees, which they make possible when you pay via MasterCard.
The last offer — any new payee paid via MasterCard for a 1.5% fee — is over. However, through Tuesday October 13 you can make payment of $500 or more to any vendor (new or existing in your Plastiq account) with a MasterCard for a 1.5% fee.