Shoppers Drug Mart has Clear 2 in 1 shampoo & conditioner on for $3.99. These bottles contain a coupon for $3.00 off any clear product.
If you are lucky you may be able to apply the coupon on the same purchase, bringing the price down to $0.99. This is a your mileage may vary type of thing as all cashiers won’t be willing to do this.
Even so, the coupons will still be good for a future sale.
Make sure to check the bottles before purchasing, as they are also selling the bottles without the coupons at some locations.