I'm sure I read somewhere
I'm sure I heard on the bus/train
have your cake and eat it. the point to having cake is to eat it.
Though people who use advertising slogans such as "Lastminute.com" or "Confused.com" to describe when they did some last minute or were confused really do need rounding up for re education.
' At close of play'. When applied in business tense when it should only be applied to cricket.
' With all due respect' which in reality usually means the exact opposite.