You know that moment when you finally face a home project you’ve been putting off for way too long? That was me with my tile floors—specifically, the tile grout lines. We moved into this house a couple years ago and it’s just gotten pushed to the bottom of the project list too many times. At some point, I had to admit I wasn’t even sure what color the grout was supposed to be anymore. All I could see were dark grey lines of built-up dirt and grime. I debated whether it was a lost caus...
