We had our first baby back in the "old days" (before you were able to choose if you wanted to know ahead of time if you were having a boy or girl), so we had to be prepared with two names. We pored over the list of names, and the only girl name we both liked was Michelle. For every other name there was some reason why it wouldn't work, so Michelle it was. We also had a lengthy discussion over whether or not to choose a middle name, but the side of "girls don't have middle names so that when they get married their maiden name becomes their middle name" won.
Now I'm sure you're all wondering why I even considered Acacia as a possible girl's name, so I'm going to tell you. At one point during our "having babies" years, we kept a dictionary handy and someone would read it and learn a new word each day. One time I opened it to the bookmark and saw the word "acacia" which was a type of tree. My sister had chosen "A" names for her girls, and I liked how "acacia" had my middle name of Kay inside it, and I just thought it would make a great name for our second daughter. Then we moved and I actually saw an acacia tree. It was planted in our neighbor's yard and hung over our fence, and it had thorns!!! So, no longer was it a candidate for a cute little girl's name. But that's okay, because we never had to name a second daughter.