I'm just tagging off the end of this, this isn't a direct reply to previous poster.
States have different laws. Some tax food, some don't, it's highly variable. Cities have sales taxes, counties do to.
This law will make it ridiculous to sell online. How are you going to keep track of all this? One state will make a law, hampsters are not food, so not taxable.
100% interfering in interstate commerce. 57 states x 1000 laws and definitions.
Imagine coupons, some states charge sales tax on original value before coupon, some don't. Track that hairy furball of a up and coming tax court notice in your mail box.
Online Pool Games, play for free - It's my own site.