Multiple Room Plank Layout
Doorways and closets are always "fun" to install click vinyl flooring in, because you have to engage it at a 10-15 degree angle. I had an angled wall and it wasn't too big a deal. If you find yourself with a small triangle, just use some colored silicone grout to install it, then put a nice table in that spot.
If you follow joe's advice, you can hide any small corrections at the transition.