Have just seen a thread with the title 'You're heading to the airport for a long haul flight - what have you done to prepare by the night before?' and I knew before opening it that the poster meant 'What would you prepare the night before a long haul flight?'.
It is the inclusion of the 'You're heading to the airport..' bit that irritates me, in the same way as when narration of a historical event is expressed in the present tense, and I don't know why I find it irritating!