Two weekends ago, my husband had a birthday. When he complained only half-jokingly about getting older, I said to him, "What? You're not a year older today. You're only a day older than you were yesterday."
I made a mental note to remind myself of this brilliant device in six short months when I earn the same number of birthday candles as my husband.
Last weekend my son turned five years old.
When he awoke on the morning of his birthday, he asked me, puzzled, "Why am I not bigger? I thought turning five meant I would be bigger." He stretched his arms wide, until his wrists poked out of his fleece pajamas, and he studied the length of his limbs. "I don't look any bigger."
"Having a birthday doesn't mean you're bigger exactly -- it means you're older," I said. "Turning five today just means it has been five years today since the day you were born. That doesn't mean you're any bigger than you were yesterday."
"Oh," he said, looking a little disappointed.