I was going to make a basic color card for some simple color correction in video. I was thinking about just cutting a piece of poster board about 4"x11" then taking some card stock and making a white/grey/black area with my printer and glue it on. Are there any better recommendations? I'm guessing I want to stay away from anything glossy to avoid glare. This is for very low budget tech videos, some of it will be inside with lighting some of it will be outside.