A thought on the virtue of temperance in speech

In my Last Post I talked about my new prepaid wireless plan. It's interesting to me how this new cell phone plan is causing me to think closely about my conversations. Since I spend a lot of time driving in my car (over 2 hours a day) I listen to Catholic radio or often will call either my husband, or my sister, or a girlfriend. Sometimes these conversations are deep, sometimes they have important purpose, like checking up on a friend in need, discussing evening plans with my husband, or solving some kind of problem, but sometimes they are just a waste of time... idle talk about nothing of great substance. Now that my minutes are depleting from a set amount that I can track easily, and I'm trying to save money, I realized that I don't want to "waste" my time on meaningless conversation. I'm thinking about saving my words for important things. I'm thinking about Ephesians 4:29:  Let no unwholesome word proceed from your mouth, but only such a word as is good for edification according to the need of the moment, so that it will give grace to those who hear.