The kitchen is the heart of the home, but according to study released by Kelton Research (in connection with Bissell Homecare), 77% of Americans say their kitchen floor isn’t always as clean as it could be and 68% percent say it isn’t always clean enough to prevent embarrassment if guests stopped by. According to the data, 24% percent say it’s at least sometimes too dirty to allow guests to enter the room. And what about that “five second rule?” While 72% said their kitchen floor isn’t always c...