I use IPython in a terminal and keep a Firefox tab open in a split screen to look at plots. When the IPython script is working, I write it out to a Python file. The only times I use Jupyter notebooks are:

1. If there's a really visually intensive workflow, like some sort of data exploration step where I need to be generating and inspecting multiple plots at the same time over and over.

2. If my goal is to make an instructional artifact and interleaving Python and explanatory HTML is helpful.