Lighting
Antique and reproduction lighting will give your home back its historic charm. If you are one of the rare ones and your home has all its original lighting, count yourself lucky. Over a century of living its normal that some well meaning previous resident changed the fixtures out to modernize or to replace a worn fixture . If you have maybe one or more original fixtures still remaining use these as sources to find similar light styles. If you have none, search the internet or antique lighting books for what lights were in style around the time your home was built. There were many out there and just pick what you like and what you feel 'matches' the style of your home, Victorian, Colonial, Craftsman, etc.
A great website to purchase reproduction and even some antique lighting is Rejuvenation. Another great resource is Ebay.
Books:
American Lighting: 1840-1940 by Nadja Maril
Local Stores:
Lightbulbs
Edison bulbs are really cool looking and make any light fixture where the bulbs show look really authentic. LED Edison bulbs are now available. They look great, will last for many years and use very little electricity.