ok, so somewhere i read this, and it really does work.
tonight, i was putting some cacti in a box to mail out, and got quite a few spines in my fingers.
take white glue (elmers or roseart, or what ever) and smear it gently over the areas with the spines. let dry until nearly peelable or just barely tacky. peel or roll off the skin, and the spines will come with it, no mess, no fuss, no pain, no tweezers, just clean hands!
it sure made me feel better 'cause the spines were those babyfine hair like ones... ouch!