Occasionally, the urge comes over Charlotte McFarland. She needs a cigarette.
"There are times that I wanted to smoke, but I know that if I just wait a few minutes, the feeling will go away."
McFarland's 30-year habit was hard to break, but she says that after a few false starts, she and her husband, Frank, were finally able to kick smoking for good.
"We had been wanting to quit for a long, long time," she said.