USD 1 = RM 3.80 i can buy 2 pcs zip cadbury wafer strawberry, which cost RM1.90/unit at Shell station I'm in malaysia
one pack of marlboro or a 2 botles of 1.5 liter cola - or a meal at a cafe or a BIG BIG shoarma sandwich or a taxi drive for 30 min etc
in the u.s. it's buying less and less 2 debbie snack cakes with a little change or a candy bar or well i can't think of anything else anything else that costs a dollar has at least 6 cents tax so a dollar isn't enough.
You wouldn't be able to buy anything with a dollar in my country because we use pounds here You could exchange it for 64p and buy 64 1 penny sweets.