 Money news at 10 and 40 past the hour on WTOP. Need coffee? Always. A new 24-7 Starbucks is opening in Northern Virginia. The new store on Richmond Highway in Dumfries near the Princeton Woods development will be open 24 hours a day, seven days a week, and will be one of the largest veteran-owned Starbucks in the Mid-Atlantic. Inside Nova reports the proposed design will have a single-lane drive-thru with room for 18 vehicles, as well as a bypass lane and covered outdoor seating.