A quick mnemonic I read on StackOverflow[1] some time ago:

   When using git log, do it like "a dog"
   git log --all --decorate --oneline --graph

I must say I had forgotten about the `--all` part, but the article mentions that it should be on by default if running interactively in the terminal, at least with recent versions of git.

[1]It might have been https://stackoverflow.com/questions/1057564/pretty-git-branc... but I am not 100% sure.