I prefer to do my answering in pencil, but if one's not available I'll use a pen and write over the incorrect letters as necessary. Sometimes when I get done there's so many corrections it's hard to figure out the actual answers, but since I'm the only one looking at it so it doesn't matter.
It's not often I can finish a puzzle with NO changes, but it happened today. In ink. I was pretty pleased with myself.
Five years ago today: Public Service Announcement