Wall Good and Evil

We built our home about 5 years ago.  It's taken that long for me to work up the courage to put things on the wall.  It's not that I don't appreciate things on walls, but there comes this point where it starts to look cluttered.  Clutter is the devil.  The devil.  So it takes me a long time to get up the nerve to put something on the wall because I'm afraid I'll hit that tipping point between 'looks good' and 'woah, too much crap.'  The good news is, vinyl lettering can be peeled off without too much effort.  So if I decide this one letter tips the balance between good and evil, I'm not committed to it for life.  Whew.