HEB has the individual bottles of Sunny D priced at $0.40. I found these in the refrigerated section next to the other juice. If you use the coupon for $0.55 off ANY SIZE Sunny D (found here), you'll be able to pick these up for free.
I was out shopping with my youngest today, so I picked one up to tide him over until we made it back home.
The coupon goes through without a beep, and it takes the full face value of the coupon off, so you'll be able to get $0.15 overage to help with the other groceries in your cart.