These days, we say things like, “There’s not enough time in the day” or “I wish I had more time.” If you’d like more personal time, and if you have a hard time saying no when someone asks you to do something – be on a committee, help with an activity, pick them up, etc., then try this.
Instead of feeling bad about saying no, think about feeling good about saving time. Saying no gives you credit that you can use in the future. Saying yes is a responsibility that requires you give up time in the future. Saying yes leads you further into time debt leaving less time for yourself. Saying no is future time credit and you retain the time to spend it however you want.
That being said, say yes, of course, if you sincerely want to do what is being asked of you, or you feel that you have an even exchange of energy with that person. Say no if you want more time for yourself.