Lincoln would be another sensible option for a destination east of Sheffield for TPE. Perhaps with stops at Worksop and Gainsborough on route. There has been talk of a local service Sheffield - Worksop eliminating the stops en-route to allow a fast service.
I had to travel from Glasgow to Mallaig on a 156 that's toilets were flooded and out of service by Dumbarton. It was packed to the rafters too! Cue the unedifying sight of dozens of tourists (male and female) weeing in plain sight on desolate platforms throughout the Highlands.
In the end booked via EMT and FGW for £25 each way all the way from Sheffield to London which is about what we'd have paid for the megatrain.
Coming back direct has been £41 for an advance ticket despite buying it the hour it went online!
I was wondering if anyone knew if you could take your dog with you when travelling on a megatrain ticket?
I've had a look at the Megatrain's terms and conditions and it doesn't mention dogs (although the megabus terms and conditions say non-assistance dogs are banned).
They do however say...