Answer:
People need me yet they give me away every day.
I am tomorrow's yesterday and yesterday's tomorrow. What am I?
I run smoother than any rhyme I love to fall but cannot climb.
I'm not alive and yet I grow. Just put me next to where it glows. A favorite in summertime best with friends when combined
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.