I do my 3 daughters houses FOC, How can you charge your family? but they are aware, its as and when I have some spare time, except for days like today.
My Son-in-law is in the RN and they were moving out today, I had to go and clean there windows and give them an invoice, to show the work had been done,
Trouble was the front of there house is full of secondry glazing, So I told the son-in-law to take them all out side and I wfp the lot.

for FREE

But I won't do friends houses, not even for a price.