git-walklog
Most of the time, when looking at history in a git repository, I am most interested in changes at a higher level than an individual commit. From time to time, however, I really want to look at each commit on its own. So, I created git-walklog. For each commit in the range specified, it:
Shows the standard log format: author, date, and commit message. Then it waits for input. Hitting enter then runs git difftool on just that commit, showing you any differences in your configured difftool 1.