This came from a book I have on household hints and ideas for everyday cleaning - I’ve taken some time and tried various soaps and found Dawn Power Clean is AWESOME. It is truly magic as the title states. It cleans the soap scum off my glass shower doors with hardly any scrubbing. I also keep a bottle in the kitchen and use it for stuck on foods! Try it on your grill - it really helps cut the grease! You need two 24 oz squirt bottles for this.