If I oder for my groceries how do I go about having someone else pick them up for me

You just have to insert their information on your order, during checkout who is picking up your order. Make sure that they have the proper ID. Walmart will let them know when your order is ready.

Just Google food delivery different prices from different places..

You go online and do the order and then send them your order number. When they pick it up, (there's a specific place to go for each Walmart), they just follow the directions when they arrive.