Here's another great post from our friends at Zen Habits. Be sure to check out the simple prayer at the end of Leo's post.
WHY LIVING A LIFE OF GRATITUDE CAN MAKE YOU HAPPY
1. Because it reminds you of the positive things in your life.
2. Because it turns bad things into good things.
3. Because it reminds you of what’s important.
4. Because it reminds you to thank others.
Being thankful for what God has already given you can totally change your perspective on life. Try this exercise: think of 5 people who have been influential in your life and thank God for them and their impact. Take time to email, call or write them to thank them for this gift. You may never know how this might return the blessing you have already received.