101 Critical Days of Summer: May 31 Tip of the Week Published May 27, 2010 BUCKLEY AIR FORCE BASE, Colo. -- The 101 Critical Days of Summer run from Memorial Day to Labor Day. Each week, the 460th Space Wing Safety Office will provide a tip to help you make it through safely. The National Click It or Ticket mobilitation campaign runs from May 24 through June 6 this year. Seatbelts save lives and tickets are expensive - buckle up 24 hours each day, 365 days each yaer. The live you save could be your own!