Discovered this recently.
Can help lots of people, if you don't have Walmart+
You can add salt or a bottle of seltzer to your order, and get free shipping.
Also generally, you can find many food staples, much cheaper on walmart.com than Jewish grocery stores, and have just that item shipped to you free, if paying with EBT, or with Walmart+.
10 lbs of flour shipped for less than what you'll pay for 5 lbs locally.
Canola oil for some reason went up 25-40% in local Brooklyn Jewish grocery stores, but stayed almost the same on Walmart.com
