git-worktree allows you to have multiple branches checked out simultaneously!
miniblog.
Related Posts
This is my favourite genre of web design: simultaneously advocating for a style and demonstrating why you should/shouldn't use it!
A debugger should show you the source code of every method in the stack trace, simultaneously:
Key ghosting: which/how many keys on a keyboard can you press simultaneously? http://t.co/rdt4HtWkaJ (researched by an Emacser, of course!)