How do you keep your ear to the ground?
 

So a few weeks back I posted about Fidget spinners and now they are all over the local schools and it's a must have item.
I have even heard stories from friends mums about the going to the local druggy area to buy a spinner...

Anyway, I found out about these just as they were starting to get popular but my question is how do you find out about something before it becomes "a thing"?

Bear in mind spinners were around but not popular around Christmas time.

I am thinking about xmas etc.