You're tired and have personal commitments. Saying no seems necessary, but you also want to maintain a positive family relationships. That's where the Give skill comes into play. Give. Give. The G stands for gentle. When you need to say no, do it gently. Instead of an abrupt no, consider saying something like I appreciate you're considering me for this task. This acknowledges their request and conveys respect for the person making it. I the I in give stands for act interested