26!

I just admired my post with the boxes stacked high and it finally dawned on me why I had 22 empty boxes left even though I had 4 full ones to keep at the end. 4 x 5+2 indeed equals 24 but what if 3+3 was 6 and not five? The stacks are 6 boxes high. Not 5! I went through 26 boxes! I feel even better about myself now and can accept the fact, that it took 2 weeks to really deal with them.