We were remodeling (we're always remodeling) and had this big gap where long-absent double doors used to be. My husband filled the space with shallow but pretty shelves. It's where I have my keepers. (I started to take pictures of the shelves upstairs and they all yelled "oh, no!" and tried to hide.)
I so HEART this!
Oh my goodness, Liz, we are twins. We are always remodeling too! We have a space between our living room and kitchen that used to be a doorway, and my husband used the space for my kitchen collectables. I'll post a pic for you, and you will be amused.