Nope. Doesn't work.  Sorry.

I'm talking about the cart. The wishlist has turned into a Long-term wishlist and is too long to be used for specific sales (there isn't a way to sort a wishlist for ONLY items that appear in, say, the 'buried treasure' sale, for example.

So the cart becomes both cart and temporary sales wishlist.

There is no way I can see of editing a cart easily. There are only the 'Continue Shopping' and 'Proceed to Checkout' buttons.

Each item has to be dealt with individually.