mudsticks
Obviously an Aubergine
Mainline railway stations have shower facilities. Well Euston and Edinburgh do. Tricky to get your bike in there though.
Yes, I think Glasgow does as well iirc .
The other place I thought of is motorway services, they often have showering facilities, if you happen to be in the area of one and desperate enough .
Yes I know - but bear with me.
They usually have non motorway service entrances round the back, so local staff can access from the surrounding area..
Nothing to stop you from availing yself of the facilities, that way..
Like Baldy I'm more often in the vicinity of a river or the sea to throw myself in, on a trip than near a motorway.
Can survive many days without a shower, only need to do the 'essentials' really - might even be a good repellant against unwelcome advances..
Who knows.??