As mentioned yesterday, putting items on your Amazon lists, once listed then any reductions in price are flagged. Good way to save on mostly non-essential items that you have time to wait for. Ex. I had put one item there priced @ $24.99 listed on Walmart @ $29.99 was reduced to $22.99, a 23% savings over Walmart.
Concerning online groceries, we use Schwan's for most of our frozen products, meat, fruit, vegetables,,,etc. Hard to find paper/cleaning products are items we must get at the local stores. Order/pay online Sunday, delivered next day on your porch with a knock & wave, during the last couple months all items have been available without the price gouging. Pay a little more but quality is there.