A few days ago I went grocery shopping, and as I was paying, the cashier asked me if I was collecting stamps. “Stamps for what?” I asked. “Stamps for new knives” she enthusiastically replied. To be honest, I’d never really given much thought to knives before. I mean, I have a set that I got when I first moved out many moons ago, but I took my stamp and went on my merry way. Later, I was flipping through the knife brochure that came with my stamp and after about page 6, I started thinking – why are there so many different types? What knife is for what? Do you really need 18 or will two do? As it turns out, you do! Here’s a breakdown of what makes one knife different from another.