Originally Posted by Helena Handbaskets
But I discovered yesterday that you can also get the 3 cent discount with a Wal-Mart gift card. I guess that's been obvious to most people for a long time, but I had missed it before. So anyway, if you haven't already figured it out, the thing to do is to buy the Wal-Mart gift card(s) while you're on a double or triple miles promotion on your Skymiles Amex, and use the gift card to purchase gas (even after the double or triple miles promotion has expired), thus earning BOTH 2-3 Skymiles per dollar AND 3 cents per gallon.
A similar trick also works with most Speedway/SuperAmerica gas stations in the southeast. In many places you can get rechargeable gas cards through AAA that offer an extra discount above & beyond what the normal S/SA gift cards offer. Speeday also has their own loyalty program you can sign up for... so you get to TRIPLE dip! Buy your gift cards on your Skymiles AMEX and get your double/triple miles, get the gift card discount, AND get points on the Speedway loyalty program which can be redeemed for free gas.