I know why we procrastinate - blades are so blasted expensive that we feel the need to get the very last possible cut out of one before pitching it. I even use a blade sharpener to extend the blade for another project or 2. I do turn the blade over when it begins to act up. Works fine - gives more life than before I heard about this trick. I have another rotary cutter that I use only for cutting paper pieceditems when I need to cut the paper too. I also have my original Olfa that I put the really dull blades in to cut paper only.
I am not really that green - just gripes me to have to pay so much for blades. Try to get them at Hobby Lobby with 40% coupon, but I have to remember to get there early or they are all gone.