Lists are great for itemizing, clarifying, noticing and gathering. They are useful in journaling when you want to find out what's going on beneath the surface of an issue. It's hard to think of 100 things, so repeats are acceptable, just write the next thing in your mind.
You start with a statement, e.g. Things I like to hear.......
then just start writing them down, e.g.
1. Yo Yo Ma
2. A child's laugh
3. I love you
4. The springs bird songs
5. A live performance of the Bee Gees
6. A babbling brook
8. sighs of release
9. the ring of the door bell
10. the ocean
11. the ocean on a northwest beach
12. playing "my" music loudly in the car
13. bamboo wind chimes
14. a distant train whistle
15. thank you
16. tires rolling on gravel
17. a cello
18. a crackling fire
19. the quiet of the morning
20. a waterfall
21. a pine cone dropping in the wee hours at a campsite
and so on and so on and so on........