expired Telstra $30 Prepaid Starter Kit for $10 at Woolworths until Tue 8 Jan / Auspost until Sun 27 Jan
This was posted 5 months 21 days ago, and might be an out-dated deal
Edit 2: This offer also available at DSE from Sat 05 Jan until Mon 21 Jan according to page 5 of upcoming catalogue, specifies same type of sims as the Woolies deal.
Woolies deal specifies it includes standard, micro and nano sim kits, not sure about BP. Auspost deal only applies to standard sims, other sims will scan at $30 (credit to bdl).
Some things to note from previous deals:
If you buy the wrong sim size or the sim you want is out of stock, you can swap your sim at a Telstra shop but it may be a bit tricky / time consuming.
The $30 credit is tied to the sim i.e. it doesn't come as a separate recharge voucher.
If you call Telstra and say you're activating it for an iPad then you'll get 3GB of data for 30 days.