We do my mum and dad's but don't charge but they make all the lads a cuppa and chocalate biscuits
Yes same here!
I just remember the "No charge" song "...for the nine months I carried you growing inside me, no charge..."
Couldn't charge my parents even when they insist!
I paid house keeping, thinking about it!
Anyway a good tip... if you do, do them whether free or not... make it the last house of the day... you'll be there for ages, catching up. drinking tee...