Check your local Rite Aid for 128- and 150-ounce bottles of Purex Laundry Detergent possibly on clearance for $5.99, regularly $11.99. Before you shop, go here and activate a Plenti Household Offer to earn 500 Plenti Points ($5.00) when you spend $15.00 on select Purex products.
Buy three bottles, for a total of $17.97. Use coupons at checkout and pay $13.97 out of pocket. Get 500 Plenti Points credited to your account within five to 30 days after the purchase. Final price: only $2.99 per bottle!