Sears offers its Ultra Plus Powder Laundry Detergent 180-Load Box (17.3 lbs.), model no. SEA 9879, for $11.99. Opt for in-store pickup to avoid the $16.62 shipping charge. That's $12 off and tied with our mention from two weeks ago as one of the best deals we've seen on this soap. (However, we saw it for a buck less in April.) Sales tax is added where applicable. This detergent is rated for high efficiency use in all washer types.

Of note, buy five boxes and apply coupon code "SDEALS817". At 900 loads for $54.95 with in-store pickup, you're pretty much done buying detergent for a few years.