Can you explain how I can make an adjustment once I get started? As of right now, I don't understand how the grid pattern for the entire house isn't set once I set the first tile. I've started measuring the dimensions of every room in the house. Is this necessary to get the best result before I start? I am trying to avoid small widths of tile at the edges. Google told me to avoid anything smaller than 1/2 a tile width, which would be 8" in this case. I think that's overkill, and I might just want to avoid very small pieces like 3" and smaller. But even now, I'm at Dunkin Donuts and they have strips of tile along the wall that are 1", and I would never have noticed if I wasn't thinking about it. Is this impossible to avoid at all places in the house?