Thanks for all your plant suggestions! I have wrote them all down next to me here on my pad. I agree that it all takes time, but I see such wonderful pictures of what everyone else has done, and I get a bit carried away. Time to put my realistic head on. 
Gary, when you say 'sow some holly-hock and foxglove seeds in little trays (to be potted up to flower next year)' do you mean indoors, or to start off outdoors, as I have no greenhouse, and it would be a windowsill job? And Jess has now decided she no longer wants to keep her playhouse as it gets too many spiders in it!!
pash, I only lifted 2 today, the smaller square ones, and I did 'walk' them. Much easier. They weren't too bad actually. I put them right in the corner and moved my 're-potting' table up there.
Joe, not sure about green, as some parts have gone green anyway, and I'm not keen, but hadn't thought of blue. Hmm. 
I'm a huge lover of roses, which I'm sure some sorts do well in the shade. How easy are they to maintain?
Been tidying up out there most the day between visitors (they never come when it's tipping down with rain), and got it looking a bit more workable. Next jobs are tackling the weeds and de-rubble all the soil. 