Starting today and lasting 10 whole rotations of the Sun is the Big W LEGO Sale. Not all sets are discounted, and there isn't a set percentage to apply to the prices, but there are price drops on the latest LEGO Star Wars
Click on any of the images below to jump straight to the right bigw.com.au page.
There are plenty of other sets with lowered prices - including the new Harry Potter ones - check out Bricking Around
for more information.