Blank Page

Whenever I am faced with a blank page, my mind seems to go blank as well. All day long random thoughts and observations pop into my brain and I think, " I want to remember that, or So-so and will get such a kick out of that story." However when the time comes to record these flights of fancy, well they seem to flit away, evaporating like dreams upon waking. I can't really call it writers block- more like a mind wipe.