Tosh
Here's the answer.
Wor Lass, bless her cottons, wants to have a nosey inside so promote her to 'senior internal conservatory operative', make her a non executive director at the same time and ramble on about a giving a pay rise.
Then the good lady can do the insides and you just busy yourself doing the outsides but invent a few problems that are time consuming so as by the time you've solved these 'problems', Wor Lass has done the conservatory.
Seriously though, there is no easy way as well you know and you were either just hoping for a spark of genius from someone or for the sympathy vote - which you have already got from me.
The sad thing is, we've got a massive conservatory to do next week. Part of it serves as a greenhouse so it's doubly a bug*er of a job. The owner pays very good money and knows we hate doing it every 6 months. He did it once himself and it took him 2 days which is why he pays us to do it.
It'll take 3 of us about 2 to 3 hours and it's back breaking.
Cheers