Gatorade, Lemon-Lime, 20 Ounce Bottles (Pack of 12) is $7.49 on Amazon. If you use S&S, there is a coupon for 10% off, and another 5% or 15% off for S&S.
$7.49 – 0.75 coupon – (0.37 or 1.12 S&S) = either $6.37 or $5.62
https://www.amazon.com/dp/B0029JRMRO/