Seriously, lol. I was restringing my dad's strat the other day without my toolbox, which made me REALLY miss my Leatherman. I borrowed a buddy's one maybe a decade ago, and was so impressed with it that I bought my own because it was the best wire cutter I'd ever used.
I prefer to use my own tools whenever possible.
Having said that, one pair of dykes (Diagonal Side Cutting Pliers, perverts) is pretty much like another for guitar string purposes.