It appears that they've since rescinded this...
Only getting approx. 25-30% off, and the only option for shipping is UPS ground which is 14.03.
Was just throwing stuff in the cart for kicks, and came up with 19 10ml bottles, at 2.25 each which totals $42.75.
Half of that would be $21.375 (21.38)
Then adding shipping, should be: $35.41
But even after logging in (figured...ok. maybe there's something that isnt being factored in until you're logged in..) I'm still being presented with a total of $45.60
They showed the code applied, but only deducted 12.38:
Was about to call in some help to put an order together...but can't justify it unless it's actually half off. Ah well. Would have had to whittle it down anyways.