After living in our house for three years and trying every option under the sun to try to clean the grout in the hallway bathroom, I stumbled across this blog post from Young House Love and boy, am I glad I did!
I spread this project out over a few days so I didn't get totally burnt out on it. It was super easy - just clean your grout with a rag/brush and soap, let it dry, then paint on the grout renew with a paintbrush that you probably already have lying around your house! Have a cloth or tissue handy to quickly wipe up any mistakes (there will be).
This Grout Renew can be found at your local Home Depot for $11.97 and is available in a large amount of colors.
Over halfway done!
This was also the day that I discovered (by hearing running water) that we had a pipe burst under the house.
BEFORE / AFTER