Sometimes, the pick of the week picks itself. MNG by Mango's red tweed dress makes me weak in the knees. Slightly retro, but deeply classic. Buttons. Tweed. Red. See, it reduces me to lists! This is is the sort of dress you grab when you're running late in the morning and can't think about an outfit. Black tights, black shoes, and the dress speaks for itself. On sale for $64, it's a great secret weapon to keep on hand.