If you have not prepared over the long, cold winter, now is the time to get some carbon in line for the bins. Dump in some now in preperation of this summers wet lettuce, squash, defective tomatoes and cukes. Save a bit in preperation for the motherlode of July watermellon rinds. Inches worth. Dump all you have in the house in preperation for October pumpkins. The long winter you can start saving up the dry stuff again.