My Father had a Rolodex on his corner of his desk at the office where he worked. It used to attract my attention as a child. It worked pretty well as a Ferris wheel with my imagination. He wasn’t amused when the cards were displaced.
I keep a little notebook next to my favorite TV chair. Whenever I hear something or get inspired by a movie or show I write it down. Often it’s a quote. Other times it’s a fact or two.