To what end? What if they were calling you weekly for some minor problem? What if they are calling because Windows Defender popped up a message letting them know that there were no problems found on their PC. I have a friend who just can't understand why Facebook is sluggish at his house (though not so much at my house). I explain that his internet connection makes a difference because Facebook has to load in many pictures and videos for every page load. I explain that he could speed up his connection a little by plugging in an ethernet cable instead of using wi-fi. I am just tired of explaining the same thing. I charge like $20 for everything, even if it takes hours but he said that the local shop that he used to go to charged $35 an hour so I don't feel bad at all.
I generally try to be helpful if someone asks for my help. No need to get something in return, that's why it's called a favor. Don't be a jerk, help your friends and family.
I used to help friends and relatives with PC/laptop problems for free but if they took it to a shop it would cost $100 minimum. So I tell them I can fix it for 75% of what a shop would charge and they are happy. If they are not willing to pay then move along because they do not value your time.
For moving houses or apartments, I usually ask for $300 a day in cash which is above what it costs for a removalists company. Any work that requires physical labour runs the risk of injury and who is going to pay for your medical bills if anything happens to you? So I ask for more than a professional to steer them from me helping them because it's better to be safe than sorry.
I get asked a lot to draw things or people for free. When I tell them no, that I do charge for that.. they immediately take offense.
Such as if they're asking you to use your pickup truck, or they ask you to help them move (especially if they never helped you before).
Or if they go to you for free tech work, such as fixing their laptops full of malware.
Or if some random stranger asked to use your phone to call somebody.
Or if a family member of one of your "buddies" asked you to cosign a loan.
Sorry folks, it's a skill I have honed over years and it takes a LOT of time to do it right.
However, it always depends on the situations, for example - "Or if some random stranger asked to use your phone to call somebody."
I once got lost, in the middle of the night in Madrid (first time I was there and completely lost without any notion of where I should go to) and had to ask a stranger for this, he basically saved me a lot of pain and in 1 minute I knew what I had to do.
So, the circumstances always change the way I'd go about these situations, even if they are work related.
As for someone using my phone, I don't let anyone I don't know use. Everyone has a cell phone, no need to use mine. Only time I can think I let a stranger use my phone when was during the shooting in Las Vegas last month and their phone ran out of battery to make a call.