Re: Ah, happy memories ... @ Graham Marsden
My dad and I did the same, selling our A4 solution sheet for a quid. I also offered a cube-solving service at the school fête for 50p, I could deal with one customer per minute (without referring to the sheet). Some customers came back 3 or 4 times during the fête because they kept messing their cubes up again... they should have coughed up the extra for a sheet.