Warning: Sock etiquette is a serious business. Failure to comply may result in social ostracism, ridicule, and/or forced viewing of an endless loop of cat videos.
Rule 1: No matching socks. Ever. You're a grown adult, don't make us tell you this.
Silently Ridicule Non-Matching Socks for more information.
Sock Tanglement: The Silent Killer of Relationships
Remember: Sock etiquette is not just about you, it's about the people you care about. Or at least, the people you pretend to care about.
Disclaimer: The Sock Wardrobe is not responsible for your social life. Or lack thereof.