Seen at a nearby convenience store:
-- A butane lighter with a fingernail clipper.
"Man, I need a smoke." *sounds of smoker getting lit up* "Crap! This fingernail needs some trimming! If only I had a way of saving myself the extra expense and bulk of nail clippers!"
--A Pen with fingernail clippers riding in a little compartment.
"Dear Kelly...Oh, crap! This fingernail needs trimming and I don't have my lighter. Good thing I bought this pen for $5.99!"