OOOH! Found some good stuff to use that Soap.com GC on Groupon for...

Like Bac-Out!  $26.40 for the huge one - $10 = you pay $16.40 + free shipping!

Dr. Bronners $14.99 x2 = $29.98 - $10= you pay $19.98 for 2 + free shipping!

Plus these deals from their homepage:

Make sure you check out their selection to determine if the Groupon offer is good for you!