Want to know a quick and easy way to feeling happier? Be grateful . It's as simple as that. A week or so ago, I had quite a scare. When I got home from work last Friday evening, I got a bad vibe -- a "something is missing" vibe. To my dismay, while using my cell phone, I noticed that my wedding band was not on my finger!  I hadn't the slightest clue where it could be; I couldn't even remember the last time I'd seen it. It's one of those things where you grow so accustomed to having or seeing something that you automatically assume it's always there. Unfortunately, it wasn't the first time in recent weeks that the ring had slid off my finger. It happened on another occasion where it fell in a drawer I was rummaging through to find a receipt. That should have been a warning to take the ring to get adjusted.) My wife and I frantically searched for the ring -- in our condo, along the walk paths outside, in my car. We even searched my cubicl...