Pho 75 is one of the best cheap eats options in Arlington. It’s cash only, no frills, and no nonsense. And delicious. The service is quick, and we’d carry around a water bottle of their broth if it were socially acceptable. The inside looks like a middle school cafeteria, but instead of day-old frozen pizza you get authentic pho and no anxiety about getting invited to the cool table. You’ll be in-and-out in a half hour completely satisfied, and a meal for two comes in under $20.