How do I save money on life insurance?

I think I need life insurance but I can't afford it. How do I save money on life insurance?I want a life insurance policy that will last until my boy's out of college, which will probably be 20 years from now. I'm a single mom and want the cheapest policy possible that will help my boy pay for college if something happens to me.Term life insurance is cheapest because it is temporary for 1-30
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