Yes, you HAVE to buy it all at one time & make SURE the lot #'s match. Can't buy it piecemeal because it won't match. That's what we did with our house. We bought all the tile but couldn't afford to have it installed & like you, well, we figured we'd suck at laying tile. So we walked on concrete slab for 9 months. Felt really strange mopping concrete. Now it's all the rage. Go figure!
