My friend N. called me yesterday to tell me she just got her period. "What is the Green Mama approach to dealing with this?" she asked. N. was new to green, but had already begun cloth diapering her baby, ate local foods, and had generally become curious about many things she used to take for granted. I am always surprised when women ask me about this issue, but I shouldn't. It's a big one: expensive in dollars, health effects, and waste.