If you are parking at an airport then you might not be familiar with how expensive it can be, especially if you are not a frequent traveller. Recently I had to do some San Francisco airport parking because I was making a short trip and I was shocked at how much it cost me for the small amount of time that I was there. It was quite a blow as I did not allow for that expense when calculating the costs of my trip and so it left me in trouble. Since that I have discovered that there are websites where you can find discount airport parking if you pay in advance. I mentioned this mishap to a friend of mine and she told me about a site that she used and she saved a considerable amount of money. I looked around on the Internet and found that there were lots of sites like this. I will certainly be using one of these sites in future to make sure that I save money and I am aware of the cost before I travel. Hopefully more people will become aware of these reduced prices and take advantage of the savings that are to be had.