Pick a spot, drop the tile on it and mark the wall. Then get your laser level and mark the room perimeter out. Work your first course strictly to that line.
The check the spirit of that first course. If all ok (it should be), bang em on all day long!!
Factors affecting : cuts around windows / end cuts. - Obviously adjust accordingly. Using a home made tile staff will quickly identify these areas anyway.
Plus, I always wip the basin and toilet out then put it back all sealed and piped in correctly.
For the perfect job!!
