Grace is a style expert and coffee lover, who subscribes to a few simple rules when it comes to her coffee runs: Rule #1 being that *casual is open to interpretation.

RULE #2: Walk as far as you can in your high heels.

Grace's wearing: SIMKHAI Getty Single Breasted Blazer in Black, Arta Bustier Mini Dress in Black; ISABEL MARANT Vigo Shoulder Bag in Black; ALEXANDRE BIRMAN Pepitta Sandal in Silver

RULE #2: Walk as far as you can in your high heels.

RULE #3: But don't be afraid to trade your heels for wheels.

RULE #3: But don't be afraid to trade your heels for wheels.

RULE #4: Whatever the weather, order it iced.

Grace's wearing: DRIES VAN NOTEN Carasi Top in Taupe; YVES SALOMON Reversible Technical Coat with Mink Trim in Noir/Basalte; ISABEL MARANT Miyako Boots in Silver

RULE #4: Whatever the weather, order it iced.

RULE #5: A spare pair of shoes never hurts.

RULE #5: A spare pair of shoes never hurts.

RULE #6: Sparkle is mandatory.

RULE #6: Sparkles are mandatory.

Grace's wearing: FORTE FORTE Stardust Sequined Oversized Jacket in Noir, Sequined Mini Skirt in Noir; PROENZA SCHOULER Viscose Wool Sweater in Charcoal; ALEXANDRE BIRMAN Pepitta Sandal in Silver