Lucky Brand discounts a selection of its men's and women's jeans as part of its Annual Denim Event, with deals starting from $19.99. Even better, cut an extra 15% off via coupon code "15GOODS", dropping starting prices to $16.99. (Select styles are marked as low as $12.73 after coupon, but sizes and stock are very limited.) That bags you savings of up to $104. Shipping adds a flat $5, or spend $50 or more to receive free shipping. A couple of best bets, each with prices after coupon and $5 for shipping:
Lucky Brand Women's Lolita Capri Jeans for $16.99 (low by $18)
Lucky Brand Men's 221 Original Straight Jeans for $25.49 (pictured, low by $30)
If you aren't using any of these three methods for significantly saving on laundry detergent, you are washing money down the drain.