Clingy Cleaner Cleans Grout

I hate cleaning grout in the shower. I haven’t found anything that will stick on the grout and clean.

One day I realized that toilet bowl cleaner is thick and it clings. I poured it on the grout, left it there about 15 minutes then washed it away with the shower head.

Not one speck of mildew was left and the grout looked brand new. Gwynn