I bought an inexpensive ammunition box from Midway USA. Its a Case-Gard P-100-44. Transparent blue plastic arranged in a matrix of 10 columns of 10 squares. Designed to hold pistol ammunition cartridges like .44 magnum, the cartos fit perfectly, even with the condoms. So if you are inclined you can label each column by flavor (can use a cheap Brother label maker or similar), and then move the cartos down the squares below for each day they have been used. Makes it pretty easy to keep track.