Walmart offers the Seventh Generation Dishwasher Detergent 20-Pack Bag in Free & Clear for $4.77. Opt for in-store pickup to dodge the $5.99 shipping charge. That's the lowest price we could find by $6 in any fragrance. It's fragrance and dye-free.
A close price: Target has them in Lemon for $4.99 with free in-store pickup.