NCLS30
Like the Koorong voucher (http://www.ozbargain.com.au/node/57630) The National Church Life Survey that most churches will be completing currently contained a voucher Word bookstore good for 30% of until 24th of December.
You can use the original voucher from the survey instore, or the code on the voucher online. The code was the same on all vouchers.
No restrictions on use (apart from having to surrender the voucher).
I'd much rather have 100% of something.