So while I was, this morning, largely recovered from the modest excesses of Sunday (i.e., having visitors) the idea pencilled in for today did not survive contact with reality.
No garden, not trains.
Rather, an unexpected phone call from the BBC "You and Yours" about an e-mail I'd sent, and the possibility of my contributing to today's programme on Radio 4.
("Will the Paralympics challenge negative stereotypes around disability?")
(I'm at 13.40)
We used the e-mail rather than putting me live, in the end.
But that was enough activity for one day.
Pretty much for the whole day, when added to Tuesday's regular two-hour (including rest) task of taking in and putting away the week's groceries.
Ah, well, the only "must" for tomorrow is being awake enough at the right time in order to let my cleaner in.
Hardly Paralympian heroism.
But then CFS doesn't really fit that paradigm.
Let's not get this wrong: the Paralympics coverage is positive and inspiring. It's just that lots of people operate with "soundbite" mental images and idea, and the Paralympics gives only a very partial image of life with disability.
The other images, and more complex ideas need to be communicated as well.
(I did my "event", and posted an e-mail that got to air.)