/dev/random

git gui blame

Though I've been using gitk for years, I've never really found a use for git gui.

One cool git gui command I've recently found useful is git gui blame. With it when you right-click a line you get a few options, two of which are particularly handy: "Show History Context" and "Blame Parent Commit".

Blame Parent Commit is especially practical in that you can recursively blame each successive revision.