The Delta SkyMiles Shopping portal is currently offering 10 miles per dollar when shopping at select merchants: Home Depot, Sam’s Club, and David Yurman
Click through to these merchants from the Delta shopping portal to earn 10X for your purchases. You do not need to pay with a Delta credit card to earn miles this way.

Well, that didn’t last long. It’s 1pt for $ now.
Do the SAMs physical GCs qualify?
Anyone know if gc purchases at SAMs club work with this?
They offer “Vanilla Visa” up to $200. Remember Wally Word doesn’t take Vanilla any longer for BlueBird loads.