I have an eye for picture placement, I guess. DH cringes every time! LOL I look at the wall and I look at my framed items and whack nails in the wall. It is rare I make more holes than necessary. DH measures everything to the nth fraction of an inch. LOL When it really matters (shelves and wall-mounted cabinets and such), I let him go at it his way. He rarely makes more holes than necessary, either. It just takes way longer.
We also have a LARGE blank two-story foyer wall alongside the staircase. I have a large, framed, old map at the bottom of the stairs. The rest of the staircase walls are empty. I kind of like it. I may add some things later on, but for now I like the blank walls in this area of the house.
Elsewhere in Home Management, I posted tonight about wanting to do something about our large, blank wall in our kitchen, though.
I know what I want, but cannot find it and I have enlisted many friends and family in my search. LOL Meanwhile, I am looking for a short-term, low-cost alternative. I have a wire with clips from Ikea that I may use. If the hanging mechanisms are too intensive or the length of wire is too short and looks weird, I may go with framing our family art night masterpieces and I am considering the ledges.
My neighbors have a wall of photographs alongside their staircase. They nailed strips of wood in level horizontal rows all the way up the staircase. It may be 1x1 or 2x2 or something along those lines. Then they hung all the hundreds of framed pictures from nails hammered only into those strips of wood. The strips are painted the same color as the wall, so they visually blend in nicely. They are grandparents and great grandparents and have a LOT of photographs! It looks pretty good considering how many pictures there are.