I thought I'd make a link for everyone to a very useful set of articles I found. The first is an education on myofascial trigger points and the following two articles are pictures of the most useful positions to work out the most common trigger point areas. I've found it helps immensely and it's a damn site cheaper than a masseuse.
http://laurensfitness.com/2008/02/24/te ... w-you-had/
http://laurensfitness.com/2008/02/27/te ... ower-body/
http://laurensfitness.com/2008/02/29/te ... pper-body/
This is by no means a comprehensive list but a definite step in the right direction. For instance I find that the line behind my shoulder blades is very prone to trigger points after front and back levers. Although I prefer to use a cricket ball as it seems to be better with the deeper trigger points. The lady who runs the site is very good at replying to any inquiries and there's also a brilliant book called 'The Trigger Point Therapy Workbook - by Clair Davies' which is very informative. Hope this helps people with niggling pains that they have never quite been able to cure through stretching.