Here are several examples of sketchbook pages that can be used to generate ideas for your own explorations.

Tiny Sketchbook

[youtube https://www.youtube.com/watch?v=9wByUC_Pw10&w=560&h=315]

My demo on creating a tiny sketchbook

General Exploration

[slideshare id=578532&doc=art-journaling-1220332780475019-9]

Hand-Drawn Type (Typography)

[slideshare id=9218713&doc=hand-drawntype-110912012124-phpapp01]