What are the best practices for plumbing business card design ideas?

A plumbing card earns its keep when the phone number is the first thing anyone sees and the card survives a real toolbox.

• Make the phone number the largest element on the card.
• Limit yourself to two or three brand colors and a bold, legible sans-serif.
• Include your license number to signal trust and legitimacy.
• Choose 16pt stock or thicker so the card handles glove boxes, wallets, and job sites.
• Add a QR code to your reviews or booking page for a modern, trackable touch.