Gilt has launched its new Gilt Unlimited Shipping Service exclusively for its Gilt Insider members. (Don't belong? It's free to join; find it under "account" at the top of the Gilt homepage.)

Similar to shipping options at Rue La La and other flash sale sites, Gilt Unlimited costs $9.95 for your first purchase and includes unlimited free shipping on all orders for the next 30 days. If you shop often that could lead to significant savings — shipping for a single order costs $5.95.