I happened to check if my local target sold single servings of the Skratch labs hydration drink mixes and the single servings were all on clearance on a toys end cap for 58 cents, regular price is $1.95 at my local bike shop.
I’ll put the DPCIs below, but brickseek was way off on inventory and price for me (brickseek shows only 15% off). The Target employee I spoke to checked and told me they had none in stock, but then I found them on a clearance end cap.
They also had a similar honey stinger hydration mix on clearance for 44 cents.
Skratch labs Lemon lime – 082-02-5449
Skratch labs orange – 082-02-0038
Honey stinger mango melon – 082-02-6425