Git: Understanding is key to using it well

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I've seen many people struggling with git manpages or getting confused with myriads of commands in git. If you are one of them, I would recommend you to check out stuff done by this cool guy, Scott Chacon.

Specifically check out this presentation here http://gitcasts.com/posts/railsconf-git-talk
The pdf of that presentation is also available there. Understanding the concepts of how git works internally is very easy and helps a lot in understanding git commands and improves your mileage with git.

For users on Windows, tortoisegit is has come up quite well. It's almost feature-equivalent to tortoisesvn and has 25 more features relevant to git.

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