For my trouble, they sent me a form letter with my name misspelled.
My boss was going make me send a form letter back to each of them until she saw how many nuts there were out there.
This is a form letter sent out to dealers telling of the new pneumatic tires wagons.
Many charities or organizations send a form letter thanking donors for their contribution.
Tailor your response to the ad - If you're responding to numerous personal ads, it may be tempting to send a form letter of sorts to each one.