Amazon has the 3lb Dr Teal's Pure Epsom Salt Soak (Relax & Relief with Eucalyptus & Spearmint) for $5.87 - $1.16 off coupon (check "Save an extra" box, eligible on first S&S order for this product) = $4.42 with free shipping on $25+ or with Prime (Extra 5% off for 5+ subscribe and save orders).