It's simple! Take five seconds or so to really look at each toy that glides on to your screen.
Ask yourself 'Did I want this for Christmas when I was younger? Or does it look like a) something your dear nanna would have played with or b) something your baby niece would slobber on?'
Tick where appropriate. If you feel the need to Snapchat any of the pictures with the caption, 'Oh my gawwd, remember this?!' then please fill your boots. We did the same thing at heat HQ and were dizzy with nostalgia for a whole afternoon.
We recommend doing the whole shebang and watching an entire season of Friends with a mountain of poptarts in ode to the good ole days.