I am going to put in ceramic floors on the first floor of my house. The tile is all going to be the same it will run from the kitchen to a family room down a hall that has a 90 degree turn into a living room to a bathroom off the hall and finally to an entry way from the garage that is off the hall also opposite the bathroom. I know if you do one room you find the center and start from there. I have laid tile in one room before. My question, How do i lay the tile throughout the first floor so it looks correct? Do i find the center of all rooms or do I do one room at a time adjusting the tile so it falls correctly?