[Ooper]

I like the look sof bullnose corners (rounded) but it does limit you to pretty much having the same color paint for areas connected by them. As for the floor tiles... why not mix them up a bit. You can put square or diagonal tiles for the majority of the floor and then put in a tile frame and reverse the pattern in places like under a dining room table or the center of your living room. Putting saddles or seperators in doorway or passage ways also break up the monotony of keeping the same pattern throughout.