Woolies has the Nature's Way Calcium + Vitamin D3 150 pack on special for $5.00 today, down from $28.00, that's $23 off and a long way below the $9.00 Coles is charging right now. Aldi sits at $5.29, so Woolies is the clear pick this week if you're already walking past one. It's a solid pantry-fill moment for anyone who takes calcium daily, especially with shorter winter days meaning a lot of Australians are light on natural vitamin D. At $5.00 for 150 tablets, it works out to about 3 cents a tablet, which is hard to beat at a mainstream supermarket.