Hello, I am tackling my wood flooring myself in my house. I purchased 660sq.ft. of Pergo XP flooring w/underlayment to cover approximately 600 square feet on a concrete slab. I repainted the entire space and removed all the baseboards. I started by laying my flooring perpendicular to the length of the house, starting in the entry on the left hump. I came to the conclusion that that is going to be more difficult and removed the flooring (only about 3 boxes worth), since the majority of my install will be backwards going towards the kitchen (see attached drawing). My question is, I'm leaning on starting at the wall opposite of the entry by the bay window and work my way towards the front of the house, would that be more appropriate? The flooring will then run with the length of the house, centering it on the small hall leading to the hallway/master. Is it going to be a problem having the flooring running perpendicular to the length of the hall going to the master? Also, when coming up to the entry door threshold/patio door, should the flooring be laid against it, or should I use an expansion gap with a piece of trim? Thank you!