You'll go through six incandescent bulbs during this period, while the compact fluorescent will still have another 3.8 years of life left.
Sunlight is brighter than a multitude of light bulbs, and it's free.
Instead of leaving lights on, put timers on a few of the lights in your home, or install motion detectors on exterior flood lights to improve your home security. Halogen torchiere lamps have grown in popularity. Although relatively inexpensive to purchase, they are expensive to operate and very inefficient. Consider a safe Energy Star torchiere.