Usually some internet advertisements will be displayed on the screen where and when we are writing essays on our blog. That is quite normal as being a part of online business, but we may not pay much attention to those stuff which are irrelevant to our doing thinking on what we are going to say.
But a piece of airline advertisement attracted my eyes the other day. It is "We are on cloud ten". What does it mean? Well, I think it is a deliberate corruption of the idiom "on cloud nine" which means extremly happy. Since it's the advertisement from an airliner, I think it may also imply that the airliner wants to fly higher above the cloud, from nine to ten.