Although it feels nasty, always charge friends and family double rate - because you know they will use and abuse you. And charge even more if it is one of your parents.

Have you ever had one of those,
"This thing came up on my screen so I clicked it and some things aren't working any more,"
calls? That continue,
"Okay Mum, what message was in the box?"
"Erm, I don't know. Something about a dll"
"Right. What did it say when you clicked it?"
"Oh, lots of things, but there were too many words so I turned it off in case there was something wrong."
"Turned it off? With the power switch?"
"Yes" etc etc

Gahh - 4 hours to sort a teeny problem!!!

Sorry - I rant a bit when I get going