Vitacost.com is running a buy one get one 50% off special on select Vitacost brand products (no code needed, just add one bottle to your cart and the second appears automatically). Shipping is $4.99, but if you spend over $25, it's free. Note that you cannot mix and match the items. Two jars of the pictured 200 Capsules of Vitacost Probiotic 10-20 - 20 Billion CFU normally run $39.42, but are now $29.57. Only FL, NC, and NV charge sales tax.