Today only, Groupon again offers $20 worth of Soap.com merchandise for $10. Even better, your order will receive free 1-2 day delivery! Soap.com offers a huge variety of drugstore products and brands. Find things from laundry soap to Brita filters and more. You can only use one per order and on only one order, you cannot spread this $20 over multiple orders. This is also not valid at Diapers.com. For more information click here. Note: Although this is for Chicago, since it is an online deal, it can be used by anyone.