Those with passionate views about how much to tip the pizza-delivery guy, please see the information in the footnote provided by two other sources. (For a look at the real reasons we tip and whether tipping has anything to do with the quality of service we receive, click here.)
Liquid Grout Sealer. 1  1. Allow new grout to cure for 48 to 72 hours before sealing. 2  2. Tape off baseboards and other nearby surfaces to prevent unintentional staining. 3  3. Apply sealer using a foam paint brush, paint pad or a small roller.  4. Wait 5 to 15 minutes to allow the first coat to soak into the grout.
You can also make your own cleaner by mixing lemon juice or vinegar with hot water. Apply it to the floor and then buff dry with a clean cloth. You can use a towel that you push over the floor with your foot. One of the most important things in knowing how to clean tile floors is keeping the grout clean. Dirty grout equals dingy-looking floors. Grout is porous and easily absorbs dirt, grease and other materials. Spray the grout with a commercially prepared grout cleaner. You can also use a mild bleach solution.