Style File
Create a folder of style inspiration. This could be a photo album on your phone, a Pinterest board, a mood-board-style poster, or a literal file/binder.
Include pieces you see on celebrities, social media, movies/TV, things your friends tell you about, ideas you researched after seeing something on a stranger at the airport, etc.
Use your style file as inspiration the next time you go shopping for clothes, so you can focus on finding things that really inspire you instead of just buying whatever is most convenient.
Source
This is a popular idea, but we first encountered it in: Color Your Style: How to Wear Your True Colors (2011) by David Zyla