John's talk.

• Always give a estimate never a quote 
• Quote is set and legally binding 
• Client should agree with order- legally can't change
• Agree terms of payment 
• Always contact client by email if additional charges occur- date stamped then for proof 
• Itemise invoice- not just a total 
• Don't do work for clients that hesitate to agree payment from the start
• Start how you mean to go on now 
• Check all agreements and small print before signing contracts on jobs.