<kbd>C-c J</kbd> or <kbd>Super-></kbd> | Switch between buffers with [`ace-jump-buffer`](https://github.com/waymondo/ace-jump-buffer)
<kbd>C-=</kbd> | Run `expand-region` (incremental text selection).
<kbd>C-a</kbd> | Run `prelude-move-beginning-of-line`. Read [this](http://emacsredux.com/blog/2013/05/22/smarter-navigation-to-the-beginning-of-a-line/) for details.