Using the power stroke can be really fun, but did you know that both the pen and the pencil tools have automatic ways of creating power strokes?
A response to this Logos by Nick tutorial: https://www.youtube.com/watch?v=tO4geFRpLXc
This short guide goes into how you can use the power pencil and power pen tools in your Inkscape work.
One warning: The fill can sometimes get confused, if you are using power pencil be sure to turn off the fill for the default style. This is a problem which I hope to fix in the future.