Chromosome mapping can be a fun way to track your genetic genealogy process. Essentially, you use the match data for you and your known cousins to assign specific pieces of your DNA to specific ancestors. There are certainly many ways you can approach this yourself. In my Organizing Your DNA quick guide I briefly cover Kitty Cooper's tool and the tool as part of the GenomeMate suite.
Genetic Genealogist Dave Bindon has developed a spreadsheet for this purpose (way to go Dave!). Due to his very generous nature, he has agreed to share it, as well as his instructions, with the genetic genealogy community.