ATC = artist trading cards. But at my paid job ATC = air traffic control. I am giving some collage/mixed media a try, and ATC seemed like a good start. Small, quick to make and mistakes are not easily recognizable. I've been thinking about Halloween. I saw some cool decorations at the craft stores, but even with their advertised 40% off, I still can't afford them. I will be making my own in the coming weeks.