With a nod to St. Paul (Romans 7:15), we can divide our sins into four categories: bad acts and bad thoughts, and failure to do good acts and failure to think good thoughts.
Regarding that last category, Jesus told us that the two great commandments are to love God and to love our neighbors as ourselves. So, what if you went through the day reminding yourself to look for reasons to love God, and trying to think well and lovingly of the people who cross your path? You would be a better and happier person, in my humble opinion.