Random question...do you guy keep a spare set of cards on your person when reffing? I have got into habit of keeping a spare pen on me due to my whole set of cards, match pad etc falling out in one game and pencil disappearing never to be seen again in process. Noticed someone else say they keep a spare set of cards on them elsewhere. I have spare set in bag I take to games which is usually at side of pitch but haven't ever had them on me physically while reffing...