Bicentennial barn: Century-old barn 1 of best in Indiana By CARSON GERBER Little Calumet clear for paddling for 1st time in decades By BOB KASARDA Why it makes sense to defer Social Security benefits Replacement windows vary in performance and reliability By Henri de Marne Converting churches to condos brings logistical, social challenges By Amanda Abrams An arborist muses on life high in the branches By Adrian Higgins A house that was Teddy Roosevelt's true home By James F. Lee Falconers hired to discourage other birds from eating crops By Dean Fosdick How to elevate a lower-level space By Jean Petersen of Hoffman Estates Fall's cool weather suitable for tree planting By Diana Stoll