Meme that never existed
Close your eyes, think for a moment, then tell me about your strongest memory of me that never happened. Could be a fantasy (if so, details darling, details), could be a silly idea, could be a daydream you once had, a trip you think we should have taken, or a random time we never met one another. Then post something along these lines in your journal and see what folks never remembered about you. Main rule: it never actually happened. At least not yet, or not in this lifetime...