Related Clues:

• Partnership
• Two for the road
• In ___ (together)
• In single file
• One after another?
• Orange-and-white rental
• Self-mover's rental
• Bicycle-built-for-two
• Two-seater
• Moving option
• Many a tractor-trailer
• Bicycle built for two
• Mover's rental
• Trailing business?
• Moving-day rental