Miracle Cleaner Into a spray bottle mix. This is powerful stuff! If your shower has a bad build-up of soap scum and crud it may take a time or two to get that shine. I've used this to clean my OVEN.my STOVE grates and the glass in the showers
No Scrub Method for cleaning stove burner grates: Seal in a plastic bag with a little ammonia (doesn't need to cover grates). Let sit overnight and the ammonia fumes will break down burnt on grease, etc. Next day, wipe clean with sponge.