I was recently in an auto accident. I am fine, but my car isn't. It was totaled. It was an old car, circa 2000, but I liked it. It was a Volvo and very dependable. It may not have been the best looking car in the parking lot, with its many scratches and dings, but it was good to me. I will be renting a car for a week, then it will be time to look for something new, or at least newer. I don't care if a car is new, as long as it runs well, and gets me where I'm going. I live in a rural area, so I'm in my car a lot.
This past week, being home from work (my hands were badly bruised and swollen, especially my right, but thankfully not broken), I've had lots of time to think about things. I know it's been said many times before, but it really is the little things in life that make a big difference. This week, it was the little things I couldn't do. I couldn't hold my coffee mug. I struggled with getting dressed. I couldn't do a downward facing dog, never mind try to pet my dog.
As I pondered these things, it made me aware of the little things in the world-building of fiction. What are the little things a character struggles with, or the little things they do to gain attention? What are the little things he/she likes, or hates about a friend? What are the little things that make the setting seem real? What are the little things that make the reader want to keep reading?