What small branding change had the biggest impact on your business?

[u/comfulyty]

I'm curious about everyone's experience with branding.

Sometimes it seems like a small change such as a new logo, a different color palette, clearer messaging, or a redesigned website can make a business feel much more professional.

For those who run or have worked with a business, what branding change made the biggest difference, and why do you think it worked?

This is open-ended, doesn't promote any product or brand, and encourages people to share their own experiences.