Every time someone suggests the non-print layer, I can't help wondering how are you using this program that you feel you need one? What are you drawing that shouldn't be printing?
Need to leave notes for co-workers? use the mark-up tool or FILE>INFO>PROJECT NOTES
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
"Implementing Successful Building Information Modeling"