MANISTEE, Mich. – Rita Alton has an unusual morning routine these days: Wake up. Get dressed. Go outside to see if her house is closer to tumbling down an 80-foot cliff into Lake Michigan. When her father built the 1,000-square-foot brick bungalow in the early 1950s near Manistee, Michigan, more than an acre of land lay between it and the drop-off overlooking the giant freshwater sea.