Almost anything you can imagine.[0][1]

[1] https://www.dollartree.com/ [1] https://www.gobankingrates.com/personal-finance/best-dollar-...

For a somewhat apples to apples comparison, a 20 oz bottle of Coke (590 mL) cost me $1.69 in a city of 1 million people.

For 1 USD you could buy:

1.5L water bottle

2 stamps (cheapest ones) to send 2 letters

1 liter of gas (for cars)

About 2/3rd of one McDonald's hamburger

About 2/3rd of one avocado