It should be an easy one, this. I'll be travelling from London to Harrogate at the weekend on what they call these days a Super Off Peak Return. I'm considering returning via Sheffield with a break of journey there and then on to St Pancras. Is that allowed? I'm sure I travelled via Sheffield once before in Saver days but can't recall if I did so because of disruption on the ECML. As a supplementary, I see there appear to be no left luggage facilities at Sheffield so does anyone know of anywhere nearby where I would be able to leave a bag (and retrieve it later, obviously)? Thanks.