Throughout anyone's day time can be saved in minor or major ways.
Tieing shoes at stop light's can save time when rushed to get out the door. The only problem is not tripping over the shoe laces on the way out to the car.
Time Saved: 30 seconds to 1 minute
By flushing the toilet when about 95% through of going to the bathroom time can be saved.
Time Saved: 1 to 5 seconds