Since most of the times I want "a quick debug" I'm already on my browser and quite probably with the dev tools already open, I prefer right-clicking on a line

Since most of the times I want "a quick debug" I'm already on my browser and quite probably with the dev tools already open, I prefer right-clicking on a line and using "Add Log" (in Firefox) or "Add logpoint" (in Chrome-based browsers). It avoids having to modify the source and then clean it up when I'm done.