Have been using these for years now, do they work is another question,
$15.31 for 2 After ebay 20% cashback on Healthy and Beauty via Shopback
=$7.65 each, which is the cheapest ive ever seen them
These retail for about $19 each, on sale for $14 - $15 at supermarkets, chemist warehouse
Not sure when shopback expires, but better get in quick
the quicker you get in, the more theyre going to ask you for ID when buying booze