Buying light bulbs used to be so elementary. But, with the development of more energy-efficient bulbs there are more options than ever. Some of the features that I always consider when shopping for light bulbs are the color of the bulb; will the light be warm or cool, is it dimable or not (I always suggest that dimmers be on every switch in your home so you can set the mood of the room) and, on top of all that you must also consider the cost and lifespan of the bulb.
So, how do you decided which bulb is best for your home and budget? Here’s a guide to get you started: http://www.lowes.com/projects/decorate-and-entertain/Lightbulb-Buying-Guide/project