Dollar Tree used to make grocery shopping feel simple: Find something you need, pay $1, and move on. But prices have changed, and many food items that once cost $1.25 now sell for $1.50 or more. That doesn’t automatically make Dollar Tree a bad place to shop, but it does mean shoppers need to look beyond the price tag. A smaller package can cost more per ounce than a larger version at Aldi, Walmart, or a neighborhood supermarket. Before filling your cart with these 10 grocery items, compare the package size and unit price to see whether you’re actually getting a bargain.