My work is (finally) done. Two coats of primer and another two of tile paint (white of course, no surprises there). Below are some before and after pics. From blue to white - and what a difference it has made, I can't believe I didn't do it sooner.
I painted in the dark of night after long days at work, the fumes were eye burningly strong, so I painted in this fetching 'geisha face' surgical mask retrieved from my shelf of goodies - my neighbours must think (um, know) I'm the nuttiest kid in the block...then again, most nights the scent of the devil's lettuce wafts through my door, so hopefully they think they're just seeing things again!