Type out a flowchart
Source: flowchart.fun
Sure, you could use any number of WYSIWYG software to create a flowchart, but, sometimes, you want a little more freedom when brainstorming the flowchart. It doesn’t get easier than typing out what you want in the boxes and then arrange them by sentences. On the right, the flowchart is created automatically.
When finished, you can download the finished flowchart as a .SVG file, which will probably not be to useful to you. However, if you can’t use the .SVG file, you can always screen capture the chart.