Things you should never let come out of your mouth without first thinking twice:

• It's no trouble at all.
•  love dogs.
• We have plenty of room.
• Call me any time.
• Is there anything I can do?
• My husband is a doctor/lawyer/accountant.
• I'll try anything once.
• Of course, bring the kids.
• Why don't you stay for dinner?
• If worst comes to worst, you can use mine.
• Don't worry there's more where that came from.
• Over my dead body, you will!