A fringe benefit is the discard. We refresh ours every day 10g/10g/10g so it adds up slowly but steadily. Two great uses are waffles and pizza crust.

Waffles: https://www.seriouseats.com/bread-baking-sourdough-waffles-r...

Pizza crust: https://www.sourdoughhome.com/sourdough-pizza-made-with-disc...