I seem to remember one of the complaints voiced on the list about binders is that the glue that squeezes out from the rod gets onto the cord that runs through the pulleys for rotating the rod and is then a mess and a pain to clean up.  Take an artificial sponge, such as the 4" by 8" by 2" thick ones used for washing cars. Cut out a piece of it roughly 2" by 1" by 1".  On one end cut a slit about  1/2 inch deep, and the same distance from one of the 1" by 2" sides as the binder cord is from the board.  Using a bulldog clip screwed to the board, mount the sponge so that the moving binder cord goes through the slit.  Moisten the sponge with vinegar or water, depending on the glue used, and it should wipe most of the glue off the binder cord as you are turning it.  The sponge can be easily removed from the bulldog clip for cleaning when done.