Well-aligned :-) (I'm seriously considering finding myself a way to let the keyboard move the mouse cursor, just so I can get alignment 'pixel perfect' myself)
I too am jealous of people who can get their boxes aligned so if somebody does come up with a way to get the keyboard (or anything else) do the work, PLEASE share on the forum. *makes puppy eyes*
Easy way to get the "default" boxes aligned is to flip every other one (i.e., alternate normal/flipped/normal). Then the snails on the right line up with the snails on the left. Register your first row off of the ceiling and one of the side walls.