Doing something a little nice for someone else can be a boost to your own mood. It could be financial, like leaving an extra big tip or giving a friend a gift card. It could be making scarves and hats for the homeless. Maybe brushing snow off your coworker’s car if you’re leaving before them, or mowing an elderly neighbor’s yard. Donate used towels or blankets, or pet toys to a shelter! Do a web search for “acts of kindness” for more ideas!