Always have carried one of one kind or another. Recently misplaced my Kershaw assisted opening with a straight blade (I, too,prefer them mainly because they are much, much easier to sharpen). Since I misplaced that I am down to two pocket knives.
My first carry knife was a Schrade 3" lockback that I found on my way home from school in the 6th grade. It hada broken tip, my mom sent it in and they sent me back a new one with a new belt holster for it to boot! Still have the knife but the holster has gone missing. Carried it on my belt in school all the time.
"Among the many misdeeds of British rule in India, history will look upon the Act depriving a whole nation of arms as the blackest."
- Mohandas Gandhi, an Autobiography, page 446.