One question, a million answers. Can you give me advice?

[rusty quoin]

6. All good answers. It's diligence through maintenance that works.

I don't like doing that, so I replace cheap liners. I know it's not green, so maybe I should try H202 in a spray bottle myself, like the one person suggested, rather than harsher chemicals.

Spray it down along with the rest of the tile with a diluted H202, and use a spray head to rinse, but this sounds not so green either, because of the extra water use.

Maybe as you rinse your body of the soap, use one hand for yourself while spraying the H202 solution on all surfaces, in a spinning motion, and at the end give all surfaces a final rinse with the shower spray head, still spinning, and then shut it down.

I'm half joking here, but your problem really did make me think about soap scum, and the best way to get rid of it. You can rinse tile, and wipe it down with the same towel you used to dry yourself after each shower, but if you want to keep a nice liner, I can only think of removing it on a regular basis, putting it on a flat surface and using a brush, water, and elbow grease to get it off, and then rinse.

Good luck.