When I was a little girl growing up my most favorite Saint was St. Therese of Lisieux. I remember a Nun telling me about the "Little Flower of Jesus" and from thence on, I prayed for her intercession in my life. St. Therese's life was short only 24 years, however she packed so much into that 24 years that I imagine she beat most that would live to 100.
She believed in "little ways". Just little things that she could do to help others. A smile, a kind word, service unto others, joy, humility in the face of anger and bias, basically anything that she could do to help the day of another fellow human being. She wrote:
"Love proves itself by deeds, so how am I to show my love? Great deeds are forbidden me. The only way I can prove my love is by scattering flowers and these flowers are every little sacrifice, every glance and word, and the doing of the least actions for love."
"For me, prayer is a surge of the heart; it is a simple look turned toward Heaven, it is a cry of recognition and of love, embracing both trial and joy; in a word, something noble, supernatural, which enlarges my soul and unites it to God.... I have not the courage to look through books for beautiful prayers.... I do as a child who has not learned to read, I just tell our Lord all that I want and He understands."