I have a lot of hideously dark grout in my house that I have been trying to clean since I moved in back in September of 2011. I searched and search on pinterest for ideas. I tried a lemon baking soda mix, looked everywhere for oxidized bleach, and sprayed (waited for and hour) then scrubbed and scrubbed my grout with a toothbrush- then repeated. I finished about a quarter of my grout with this last method before giving up. It was 2 hours a night every night with little to show for it.
On Saturday we moved a piece of furniture and it left a scratch on my tile so I busted out my trusty Magic Eraser to see if I could wipe it off. It worked. My hands strayed a bit and I rubbed it on the grout to see what would happen. I quick little rub and what do you know?? My grout magically got cleaned. Are you kidding me? Was it that simple all along that I could have just been magic erasing it? Why didn't I think of that 3 years ago?
What else can I magic erase?