I love Twitter’s Bootstrap. I find that when developing with it, either Bootstrap 2 (2.3.2) or Bootstrap 3, that I always need to apply custom styles at the different sizes. Especially when going beyond Bootstrap’s standard functionality. After all, it’s just a front-end framework.
Below you’ll find nicely formatted Media Queries for starting with either of the Bootstrap versions. You can use this as a starting point for your projects. It’s basically what I use when creating a new website or webapp. I’ve also provided links to Github for quick access.