Possible Clues:

• *Thing that won't go off without a hitch?
• Rental giant
• Move-it-yourself company
• Trailing business?
• Do-it-yourselfer's van
• Car hitch-up
• 'Adventures in moving' sloganeer, once
• Self-mover's van rental, perhaps
• Company with red-and-white trucks
• Thing that doesn't go off without a hitch?