If you’re good at something, never do it for free…
..The Joker.
Easier said than done. You’re obviously a good friend and want to help them out and as a one off, or If you are a young DJ still learning whats the harm. Its the 3rd, 4th and 5th time… and from my experience, If you have done something for free for someone once they will expect it time and time again. When you eventually say no, or I’m going to have to charge you, some will be annoyed or funny with you. Yes this does happen. Sometimes its easier, If its your job to have mates rates from the start. 🙂