6pm continues to offer the Oakley Unisex Dispute Rectangular Sunglasses in Pol Black for $54.99 with free shipping. That's tied with our mention from a week ago and the lowest price we could find by $53. They feature 100% UV protection.
Luxomo offers the Tom Ford Women's Whitney Sunglasses in Purple/Brown for $64.99. Coupon code "LUXTF55" cuts that to $55. With free shipping, that's $15 below our September mention and the lowest price we've seen. (It's the best deal now for any color by $54, although most retailers charge over $170.) Deal ends April 28.