I used Claude for months the default way. Every conversation started from scratch. Generic tone. Responses that sounded like everyone else.
Then I found Custom Instructions.
Two boxes. Five minutes. Now Claude knows who I am, how I write, and what I never want it to do. No em dashes. No filler phrases. Short sentences. Direct tone.
Every single conversation since has been sharper and faster.
If you have not set yours up yet go to your profile icon in Claude, click Custom Instructions, and tell it exactly how you want it to behave.
That is the smallest thing I did this week with the biggest return.
What settings or tweaks have you found that actually changed how you use AI? Drop them below. 👽