Knee Board - waste of 20 sheets, or more.
I use two thin binding strips, 20p each from my local stationer. With a map cunningly folded to just about A4 I have my PLOG on the reverse and spin the map through 180 degrees.
Have never exceeded in PPL or CPL training the A4 area of map.
Plotter and pen in the top pocket of my shirt and a cunning Swatch strapped to my arm.
Keep the VFR flight guide in the side pocket in case of diversion and away you go. Nothing flash at Wessexairways!
Had the same problem, my ppl instructor liked stop watches, knee boards maps, crp's the list goes on. The dear old PA28 looked like Pooleys sales floor! Actually think he may have been on commission to the flying club to sell this rubbish!
PM me your address and I will send you the binding strips free!
Wessex