To Scratch or not to Scratch?

Forum Question of the Week:

FJCLAUS1 writes: I recently ran out of my business cards and due to poor managment I didn't order more in time. Until my new ones come in I have to resort to older cards. On these older cards there is a a voicemail # and an e-mail address I no longer use. What would be the more professional way to remove them? Should I put a sticker over them with a new e-mail address (printed on the computer) or should I just take a pen and put 1 line through each one? What would you do?