What are the best practices for making a standout GitHub profile README?

[2019-02-18]

I've been working on my GitHub profile README and want to make it really stand out. I've seen some amazing profiles with animations, stats cards, and creative layouts.

I'd love to hear from the community:

1. What tools or services do you use for your profile README? (e.g., shields.io, github-readme-stats, skill icons, etc.)
2. What makes a profile memorable when you visit someone's GitHub?
3. Any tips for balancing visual appeal with useful information?
4. Do you prefer a minimal clean look or a feature-rich animated profile?

Share your profile README tips and tricks below! I'll mark the most helpful answer.