We have a walk-up (tri-level? whatever it's called where you live... We enter on our bottom level and walk up 2 flights of stairs to get to our top level). Our front door is right at the bottom of the first staircase so i'm guessing I should at least do that one?
Do I need to do both? Do I even need to do any of them? We do still have some blank walls but for some reason I keep thinking they should both have something on them.