title: shopping cart price change
body: <p>Say i have a Laptop for 600.00. Say i change it to $650.00. How do shopping carts handle that? Like do they store the price in the cart or the item? How do they make sure they get the price they wanted but not bill the customer the new change without asking them? Or do most store them in both?</p>
  
  <p>I was thinking maybe i could store it in both.
  So if the current price is over the cart price for a item, don't remove it/bill them from their cart. Then after, tell them what was billed/email a receipt for the items that didn't change that was billed(say they had more then one item) and remove it from the cart. For the items that did change, say something like "Items left in cart due to price change, please check if you still want to buy the items at the new price." So leave the items that changed in the cart but update the price in the cart.</p>
  
  <p>Thats my idea on how to do it. I don't think the language should matter. Guess this is more of a logical type question. Do most shopping carts do it this way or is there a better way?</p>