You are not the only one. Years ago when Beta and VCR recorders were all the rage, I kept a seam ripper near the machine to tear the cellophane off the tapes, then I used them to open delivery packages that were taped with the tape that had the "string" added to secure pacages in transit. Now I use them for everything - they're all over the house. I'd never throw them away LOL
They're great in the kitchen too, opening meat packaging (Hot Dogs, Bacon, etc. -Possibilities are endless.