I have tried sprays that I have to spray everytime we shower, but sometimes I skip a time or two and then the water spots are back and I have to spend a long time scrubbing. Is there something that will last longer or make the scrubbing easier?

Try to squeegee the tiled walls and glass bricks after every shower, which pretty much eliminates that nasty task of cleaning the shower once a week. I have a stick on hook in my shower where i hang my squeegee so it's easy to get to. Once every 3 months, sprinkle an abrasive cleaner (non-bleach, but with other types of safe whiteners) on a plate and take an old toothbrush to the grout. Let me know how that goes! - Evette