Step 4: A Quick Tile Fix: With the plumbing fixtures updated I turned my attention to the tile. If budget and time were no object, Glen and Louise would have preferred to replace the tiles with a more interesting option. In reality, however, that option was out. On the upside, the tiles were in good shape and relatively inoffensive. To add a little graphic oomph, I used a paint-on grout dye to darken the existing white grout lines. The process of dyeing grout is really simple: You paint the product on and then wipe away the excess with a paper towel or a rag. Don’t worry; the dye stains only the grout joints. I found that working on small sections of wall works best. If you try to cover too much space at a time you’ll end up really needing to scrub to get the dye off. Photo by Manuel Rodriguez