Stay three separate times at any Best Western hotel through Aug. 14, 2011 and you will get a free night voucher for use at any Best Western hotel in the U.S. or Canada. The promotion began June 19 and runs through Aug. 14, 2011. The free night voucher must be used before Jan. 31, 2012. Visit http://bestwestern.com/summer to learn more and to register for the promotion.