Decades ago, my husband worked for a yarn company here in town. One of the items he saved was this little thread clipper.
It fits in your hand nicely, and is spring loaded to re-open automatically, so it's quicker and more ergonomical than scissors. (Yes, I bite my nails.)
When he gave them to me, I crocheted for a hobby. A hobby wherein you cut your thread about once every 30 minutes, or even once a week if you're working on a thread crochet project. So I smiled nicely, stuck them in a drawer and forgot all about them.
Now that I'm looking at this:
"This" being 104 threads that need to be clipped, I'm pretty glad for them.