Each time I'm in the fast lane, my dad always pulls me back to tell me, "son, in this life, it's the little things that matter". What eventually counts for happiness is not one instantaneous pound of kindness. However, it's an accumulation of little acts of kindness. Life is more beautiful when we appreciate and cherish the little things.
Also, no act of kindness is too small to make another's day. You might just be the spark someone else needs.
Thanks for this @dswigle