Air Wick Essential Mist Refills 20ml, $5.60 (Typically $8.00) + Delivery (Free with Prime / $39 Spend) @ Amazon AU

Typically $8.00 in Coles, Woolworths and BigW.

Four scents are available for the price:

• Refill Cinnamon & Crisp Apple
• Peony & Jasmine
• Fresh Water Breeze
• Mandarin & Orange

Minimum purchase: 3 items.

Also, currently on sale
Air Wick Essential Mist Infuser, Prime Peony & Jasmine, 20ml $21.00 ( typically $30.00):
https://www.amazon.com.au/dp/B07CFMK3RJ/ref=cm_sw_r_cp_apa_i…
(minimum purchase of 2).

Also, these are Prime items and qualifies for free one day shipping: https://www.ozbargain.com.au/node/561919.