I had been inspired by all the stuff in the news about happiness lately. And people had been so nice to me in these last months of treatment that I tried to make a list of things that are free-or almost free- that can make someone else feel happy. But I couldn't remember anything.
A useful therapists' technique is "reframing." Just as you can change the look of a picture by changing the frame (Bigger? Smaller? Plainer? Move it over a bit?), you can change how you "see" a situation by framing it differently.