Scott,
Wow - thanks a lot! Those are some great concrete suggestions, both for getting produce and making it look/smell/feel good. I'll try them. Just raked up two rubbish bags' worth of dry leaves for mulch. I hadn't thought of that, even though it's obvious. I don't have a car so whatever can be used on the spot is good.
blue berries, which could go here and there along the fences. This would allow access to the triangular patch for tending to annuals or whatever else you put there
What do you mean by 'allow access'?
It's actually not that small a plot - the photo's perspective may distort it a bit. The front fence is only some 4m wide, but the triangle is a good 10m deep. Enough for me, I reckon. I noticed today that on the right hand side where the fence panels are (and beans might go), the ground slopes up a foot or so. Not sure if that can be used to some advantage.
Finally, the raised beds (hidden in the pic) are four separate plank-rimmed patches. I'd keep that, or is there a case against it? Could also leave the panels in front to create a shade - but what thrives there?