I’ve written about the different offers from Plastiq to pay bills with your credit card (they charge your card, mail a check to your payee).
Their offer of just a 1.5% fee (their usual fee is 2.5%) when making any payment of $500 or more with a MasterCard ends tomorrow (Tuesday October 13). You can schedule as many future payments as you wish, however, and receive that 1.5% fee — as long as you do it by tomorrow. Plastiq says this is their last currently-planned promotion.