Instructions Just found this Airwick Mist for £1.99 at ConcordExtra.com. You buy 2 for £1.99 (comes with a refill) not just one.
I wish I had seen this first before I bought mine at Tesco for £3.06 Buy 2 for 1.
At the other supermarkets they are:
Asda £2.50 each
Sainsburys £3.06 each
Hope this helps.