Sensodyne Toothpaste Any Discounts?

Always use the Sensodyne Repair & Protect. They used to have 50% off in Coles/Woolworths/Chemist Warehouse. RRP $11 always bought a lot at $5.50.

But I haven't seen it even once for almost a year.

Now where are you buying your Sensodyne? Where do you get the cheapest price? Where to get the biggest discount?