Don't miss the New Hampshire Old House and Barn Exposition to be held at the Center of NH, Radisson Hotel in Manchester on March 15 and 16 from 9am-5pm.  There will be more than 100 exhibitors, presenters and demonstrations of old house products and services. Topics include researching your house's history, barn repair, historic wallpaper, energy efficiency, stonewall building and on and on.  Cost for Adults is $10; Students and Seniors $7; Children under 12 free.  Visit www.nhpreservation.org or call 603-2242281 for more information.