Hi Jan
A bit of a dilema eh? If I were you I would be praying that her business doesn't pick up and that you only have the two 'handovers' throughout the year.
As you say, £30 is nothing considering what you have to do. Wait till we get some nice weather and you want to go away yourself.............£30 is nothing to tie you to a locality for a whole day.
There are other things to consider too...................what if one lot of guests are late checking out and the others are waiting to come in (and you're still cleaning it)...............you will get it in the neck!
I wouldn't bother.
The cleaning bit wouldn't bother me but the 'management' bit would.
What about Caravan sites? That was fairly lucrative for me a few years ago. It took a bit of organising and a big team was necessary for just a couple of hours on a Saturday but it was good money and the caravan site management were on hand to sort out any 'guest' issues.
Supposing a site had 50 caravans that needed cleaning between 10 am and 2 pm on a Saturday. One person would clean three in that time.
Charge 50 pence per foot i.e. a 30 foot caravan you would charge £15.00. A larger one with the extra bedroom would be about 36 foot i.e. £18.00
About £800 quid income for a Saturday! 17 staff X 4 hours X £5 ph = £340 labour!!!!
Even if you spent £60 0n materials you'd make £100 per hour for organising it!
Incidentally, we never used hoovers. There is very little carpet in a caravan and a pushalong sweeper or even a hand brush was usually enough. We did have a cheap 'Vax' type carpet cleaner on site just in case!!!!!
Good luck. I now live in the Midlands. No caravan sites here!!!