I love this idea. Give him a slew of envelopes, each one with a specific condition. Examples are: Open when you are feeling sick. Open when you need motivation. Open when work is aggravating you. Open when you need to remember how much I love you.
Scripture Calendar - Love this idea! If anything you'll memorize 12 verses each year. Could add a numbered blank list on each page to write things you were thankful for that day (fill up the whole month)