We had a mindfulness workshop at work last week. My biggest take away was maintaining a daily gratitude log. Minimum of 3 things that I am grateful for and that I made a direct contribution to. The 2nd part is what made it all click. This makes me look for these small contributions throughout my day and by reliving these at the end of my day.
Initially I was going to do this in my paper journal but I have found that using DayOne is the perfect place for these thoughts.