Getting out of a Purchase Agreement

In an attempt to sleep better at night I was looking for a way to get out of my purchase agreement if I got cold feet around the time of closing. In my research I came across an article on Realty Times that for the most part says I am stuck. As sort of a consolation to your new 1000 square foot ball and chain the article offers ways to deal with buyer's remorse. Some of the more irritating ideas are that once you move in you will like the house. Asinine. Or the old cliche "time heals all wounds". More sound advice. The article is actually rather informative up to the patronizing ending. Now, if you will excuse me I have to go vomit , it seems cold feet is setting in months befor my closing.