Saw this on Amazon, pretty decent price considering free delivery with Amazon Prime.
Works with the 15% off offer if you buy 3 sets.
Free Delivery with Amazon Prime.
Edit: the 15% off offer gets you $8.55 discount, plus 6% cashback, hoo, that's $12 savings.
Turns out to be 0.19/100 sheets.
That's not really much cheaper than getting it at the Supermarkets when it's on sale, which is every few weeks…