Why Dental Floss is in my Sewing Kit

I like this.  It's a strong thread, with its own cutter and I use the dimple formed by the spool as a kind of thimble, to help push a reluctant needle thro' tough material.
Yes. I know the stitching's not perfect...

A cutter...

... a thimbly thing...

... and strong thread. Mint(y).