You can even set reminders so it pops up on your phone.
Think of it as a win-win: You help others and get a boost yourself.
What if embracing our negative side is actually good for us?
This simple trick will help brighten your outlook on even the crummiest days.
Feel happier in just 5 minutes with the Greatist Happiness Tune-Up.
Feeling blue? Instead of holing up listening to music, try a more creative outlet.
Need a boost? We put together a list of surefire ways to stay optimistic in any situation.