It’s a ways off, so mark your calendar. The Vintage Fair will showcase 40 stalls of vintage and retro fashion along with other fun kitsch stuff, like homewares (personally, I have my fingers crossed for finding a Pepto-Bismol pink vintage telephone).
Additionally, there are still some stalls open if you think you may have something to sell.
Here is more information about The Vintage Fair in Manchester (directions included).
Here is more information about The Vintage Fair in general.