Stock up time! There’s stacking offers on both the HUGE bottles and the smaller bottles of Gain Fireworks are available in several scents. Head over to Amazon for this nice stock up deal while it lasts. Grab the coupon for $2.50 off while it’s there! As of right now, each scent has a coupon. This coupon STACKS with any additional discount you may have (up to 15% more off!) for being a Subscribe & Save customer. Ships FREE with Prime!