Looking for advice for how to manage things during a one-day "layover" between a flight (from the US) and the overnight train from London to Edinburgh.
I'm heading to Scotland for a wedding in the fall, and will be seeing some of England as well. We're using London as our flight base of operations (flight from US to/from London), and taking the Caledonian Sleeper to Edinburgh. I have myself, my wife, and two children (2 and 4).
On the way in, we'll be taking an overnight flight to London, landing around noon. We're then taking the Sleeper that evening. We're travelling Economy class (on Virgin Atlantic, to LHR) from/to the US, and haven't yet booked our train tickets.
What are our best options for stowing our bags and taking showers? We plan to spend the day in London seeing a few sights (though we'll be back the next week for a longer period). The way I see it we have a few choices, given we want to take one shower sometime between the flight and the next day (so either before the sleeper ride, or after @ Edinburgh).
Stow bags at LHR vs stow bags @ Euston, or perhaps a third location?
Shower @ LHR vs Shower @ Euston vs Shower @ Edinburgh; for Euston, we can get first class tickets to use the Lounge, or otherwise pay.
Is there a better option of these? I've never used showers at a public airport/train station before, though I'm sure we'll manage with anything that's usable. We're in particular concerned about the kids (who we don't worry about showering/bathing, but we do want to not lose track of!) and also read that in Euston they won't necessarily be allowed in the Virgin lounge.