I made miniature custom score cards for all the Austin area courses I play regularly. I print on business card stock. It has 9 holes per side. I carry hundreds in my bag with a rubber band wrapped around them and when I get to a course I just pull out the one I need. I have blank ones for the courses I've never played. The only catch is you have to use a pencil because they soak up sweat and a pen will not write on them after they get a little wet.