I love all of Doris Day's movies, including this one, but there's an obvious and glaringly huge plot hole...
The McClure maid Molly obviously lives in the McClure home as she appears in curlers and a bathrobe near the end of the movie and she's always forced to move to the smaller Iverson home whenever the family is at the larger McClure home... so her bedroom is empty for use by Stacie when she's gone, negating the need for the camper as an extra bedroom.
Since the plot is built around them needing an extra bedroom, it kills the whole movie's flow.
The other reason to deduct points is using the same pieces of music over and over and over. For instance Flip's transistor radio only plays one song. Doris drives home, the chase scene the lumber mill all use the same exact music.
The McClure maid Molly obviously lives in the McClure home as she appears in curlers and a bathrobe near the end of the movie and she's always forced to move to the smaller Iverson home whenever the family is at the larger McClure home... so her bedroom is empty for use by Stacie when she's gone, negating the need for the camper as an extra bedroom.
Since the plot is built around them needing an extra bedroom, it kills the whole movie's flow.
The other reason to deduct points is using the same pieces of music over and over and over. For instance Flip's transistor radio only plays one song. Doris drives home, the chase scene the lumber mill all use the same exact music.