Labor Day weekend is right around the corner, which means the unofficial end of summer — and the start of fall bookings, school routines, and a new season's worth of events. Before September hits, here are the hair services worth squeezing in. A Balayage Refresh or Toning Gloss If your summer color is looking brassy or dull, a quick gloss appointment right now extends the life of your existing color into fall. It takes about an hour and the difference is always dramatic. Don'