For its Balance Reward members, Walgreens offers the Tide Plus A Touch of Downy High Efficiency Liquid Laundry Detergent 46-oz. Bottle in April Fresh for $4.99. (Not a member? It's free to join.) Clip the $2 off coupon on the product page to drop it to $2.99. Opt for in-store pickup to avoid the $5.99 shipping fee. That's about $4 less than you could expect to pay at other local stores.
These tips and tools can help you recoup thousands of dollars if the unthinkable happens.