+1 on the Emerson.
I carry a utility knife, in the pocket, all the time. One of my requisites for a carry knife is that it can be opened and closed with one hand. Autos and spring assist don't fit the bill there. Don't get me wrong, I like to play with sharp pointy things too. Daily use is a different story.
A knife an "axis lock" can be set-up and maintained to operate one handed. My preferred carry is a Benchmade Griptilian.