Here are some sweet girls' dresses I came across and current available promotions.
Gymboree - 50% off all dresses and buttondowns
Mini Boden - 15% off + FREE SHIPPING with code 7B7T
GAP - 30% off. Use coupon code HAPPY at checkout.
Available in 3 colors/patterns
Also available in White.
Available in 3 colors, this one's only $10!
Available in 3 colors
Also available in Blue