Here are the printable booklets for the 2015 semi-finals so you can judge along at home. We give a score out of 5 for song, outfit, & performance and use that to determine who would get our douze points. Each semi-final is printed two-sided on one piece of paper and then folded into a neat booklet with no need for glue or staples.
(Right-click and “save-as” if they don’t show up correctly in browser.)
Folding instructions here.