In the world there are some really nice people.
Take, for example, the man that helped me carry the stroller with Sophie in it down a flight of stairs. (The train station didn't have an elevator.)
Then there was the little girl sitting beside us at lunch who entertained Sophie so that I could actually, kinda, sorta eat at a normal pace instead of just shoveling it in.
The sales clerk who offered to put all of my smaller bags into a bigger bag even though I didn't buy anything from her store.
The guy at Starbucks who who switched tables with me so that I could have more room for the stroller.
The old lady who held the elevator for us.
That stuffy-looking business man who made funny faces at Sophie when he thought no one was looking.
Go out. Look for the good in people. You'll be surprised at the random acts of kindness. But, best of all is passing it on to another person.