That's a perculiarly American problem - everybody else factors tax into the sticker price. It's only America that seems to add it at the register. I assume it

That's a perculiarly American problem - everybody else factors tax into the sticker price. It's only America that seems to add it at the register. I assume it's to take advantage the famously high level of math education among Americans who can easily add 4.5% state and 1.8% city sales tax to a coffee in their head.