One thing that tends to happen with Git, is being careless with what you add to your repository.
I've seen this happen since I began using Git, a couple years ago, and it stays happening over and over again, for various reasons.

• git
• github
• bash
• rewriting
• history
• repository
• filter-branch
• instructions

A couple of days ago, I needed to add a slideshow to a project that I'm currently working on.

• different
• different-size
• extension
• fork
• gilbitron
• github
• images
• jquery
• nivo
• nivo-slider
• plugin
• plugins-and-libraries
• size
• slider