Did you try Gain and Didn't like it get a refund.
Gain Original Powder Detergent has more freshness in 1 scoop than an entire 54-load box of the leading powder detergent with Oxi. We guarantee it! Try Gain Original Powder Detergent, and if you're not satisfied for any reason, we'll refund your purchase price up to $15.64 (excludes taxes). Available on any size Gain Original Powder purchased from 12/26/11 through 3/15/12. Must be post marked by 3/31/12. Offer applies to the 50 US states only. To receive your refund, please include your full name and address on a 3x5 card and mail along with the original dated cash register receipt with purchase price circled & the UPC from any size Gain Original Powder Detergent to: Gain Original Powder Money Back Guarantee Dept. J PO Box 49599