I had these 'Fireworks' scent boosters attached to my weekly 150oz of Gain laundry liquid and yes I really use that much a week. I use the Apple Mango Tango, the Hawaiian Aloha or the Island Fresh. I use the Gain dryer bars too. I just love Gain's products. These things are simply amazing. It had my clothes smelling even better, which I didn't think was possible and the smell lasted throughout the day of wearing my clothes out and about. I am now going to buy them for my daily laundry routines. They're cheaper than most In-Wash scent boosters and they work just the same. I recommend them to anyone who wants their clothes to smell fresh, longer.