I have laminate and porcelain tiles throughout my house. Last year I bought the Hoover Floor Mate, a machine that vacuums, washes then dries with the flip of a knob. For the grout, I pretreat with Zep grout cleaner (in the cleaning section of Home Depot). That stuff is AMAZING!! For cleaning the floors I simply use white vinegar/hot water in the machine with a capful of Hoover's floor cleaning solution. Treat yourself to this machine - it's worth its weight in gold!!