Did a "new" primary school yesterday - started at 7.45 and finished at 3.45. First clean in 4 years.
Mrs Gold who gets school hols off worked with me for the first time ever and I was really impressed - it was mainly ground floor so she wiped/washed away the cobwebs (used my gate ladder to reach the top frames cuz she's only two foot six

) - dampened obvious bird muck and crud ahead of me who finished off with the SLX pole. (reduced to 3 sections)
Then she had an hours kip in the car while I did the roof "bubbles" (like the ones Pingu showed a few days back - opaque plastic rooflights) and the school hall upper windows.
A good earner and she enjoyed it too! Might go looking for conservatory cleans one day a week in the school hols in the spring and summer in the future.
I did run out of water - being a first clean and had to choose between taking an hour out for a refill or tradding the last thirty windows. I tradded 'em.