By The Light of The...Lamp!

We are constantly looking for ways to be more self reliant.  Last year we had a power outage for a few days and we learned just how unprepared we are for a disaster.  I am always looking for items at goodwill that would help us be more prepared in the future.  A couple weeks ago I found an oil lamp for just a few dollars.  I know you can buy these new, but our budget doesn't allow that.  I immediately grabbed the lamp and checked it out.  The dial to turn the wick worked smoothly and I was super pleased.  Now we have two oil lamps and they have been sitting on the table as decorations.  You wouldn't believe how hard it is to find the oil for the lamps in a store.  I contemplated buying oil from Amazon but figured I would hold off for a while.  Last weekend I was in Lancaster, home to the Amish.  I stopped in at a general store and what do you know?  They had the lamp oil!  I bought enough to fill our lamps for the time being.  I want to research and find the cheapest source (or a diy version?) before I stock up.  At least now we are ready for a power outage, and its kinda romantic don't you think? 

Do you have experience with oil lamps?  How would/do you get light during a long power outage?