"W"

I have an obsession with the letter "W." Putting up different letters around the house is definitely a trend right now, and I find it easy to go overboard. When my brother was here in August, he found it amusing to count all the "W's" in the house. I don't remember how many he found, but I don't think it was a lot. We have a smallish house, so I try to keep it under control, but I am consistently finding other styles of "W's" I like. So the question is, how much is too much? One per room?