If they're triangular or square your butt will be sore

I was given to you at the start, a gift from the heart. You take me with you where ever you go, throught every high and low. I you decide I no longer feel right, you can change me by legal right. But even if traded for something new, others will you me more than you do.

I'm not the whole, a piece or part. Just one share, of cake or tart. Just a sliver, Of pie on chart. Why your one downvote, is just a little wet fart.

I guard the coats you never use, the shoes you swear you didn’t choose. Each year I grow, yet none can see, who keeps on feeding these things to me.

A place for damsels held. Steel and iron, stack and weld. Broadcasting voices from its peak: its beacon’s silent yell. Tolkien’s two: an easy tell. Rapunzel used to dwell. It’s silhouette on a stormy night, top stories: fright it sells.