Mother's Day has come and gone, but the allure of rich-mom style is eternal. All spring, I've been paying special attention to the class of celebrity moms whose style has inspired me regardless of the life phase I’m in. Their errand outfits could double as a magazine editorial; their maternity clothes are actually aspirational; and their “I woke up like this” energy is easier to replicate than it seems on first glance. The Modern Rich-Mom Starter Pack After studying countless Mario Baldi dinners and SoHo errand runs by the likes of Rihanna , Katie Holmes , Sofia Richie Grainge , Jennifer Lawrence and more, I’ve ID’ed the three pillars of what I like to call the Rich-Mom Starter Pack. That is, the items that make a five-minute outfit both luxurious and functional on our busiest days. These moms are living in a much different tax bracket than I am; they’re most often photographed with status pieces like, say, the Chanel Maxi Flap bag .…