Hi Mrs Scrim

Try and get into the habit of asking the custy, if it will be a regular, or as and when clean?
Just tell them if its going to be a regular clean you can do it for X number of £££......Or if its an as and when clean, then its going to cost them more (and double the price)
I had one the other day and she was humming and arrrring about how regular she wanted it done, I told her if she wanted it as and when its going to cost £100 each time .....but if she had a regular clean (every 6 weeks in my case) it would only cost her £50, she snapped my hand off at the £50 regular clean, (it was a big house)
So before you jump in to give the custy a price, take a couple of minutes out for yourself and think about it, this way you will get regular cleans at good prices.