Learn square dancing for free

  LYNDEN — Learn to square dance, getting two instructional sessions for free from Rainbow Squares, coming up this fall at the Ten Mile Grange, 6958 Hannegan Rd. The times are 7 to 9 p.m. on two Tuesdays, Sept. 25 and Oct. 2.   After those two dates, then it’s only $5 per person per evening.   Casual…