 So it'll be back before P&Z at a later date. The heat is on. The tents are up on Greenwich Avenue. Time for sidewalk sale days. The largest outdoor shopping extravaganza in the state of Connecticut. Greenwich Chamber of Commerce President and CEO Marshall Cain as the four-day event kicks off today, and she has this advice. First and foremost, I would say wear your comfortable walking shoes because Greenwich Avenue is on a slope up and down, and you're going to want to go to both sides.