My favorite example of this lunacy is the restaurant nearby that sells pies. If they box your pie for you to take home, it's a grocery item and not taxed. If th

My favorite example of this lunacy is the restaurant nearby that sells pies. If they box your pie for you to take home, it's a grocery item and not taxed. If they give you utensils to eat it in the store, it's a restaurant meal and therefore taxed. They literally can't know the price until you tell them whether you'd like a fork with it. Now, this restaurant works around it by having both prices listed, but I can imagine a million freaking variants of that for an online sale: "you have to pay our local taxes, but almost maybe yours, unless you check out on a Sunday between noon and 5PM, which is a tax holiday on your block (but not your neighbors' across the road), so understand that the price may change between when you add it to your cart and when you click the 'pay' button." I'm only a little bit exaggerating.