I already know it's a sad as fuck pastime so no need to tell me but does anyone else do it ? I started about 4 weeks ago and it's became a bit of an obsession now. There's 54 different ones in circulation and at present I have 15 and I'm not stopping til I have all 54. The rarest one is of kew gardens which can sell for up to £100 on ebay. It's class checking your change and finding a need amongst it.