Diapers in the night

Just hanging out with Lannin after her 3:30 feeding.  She's playing a game called, "how many diapers can mom change?"  I'm not sure what the scoring system is, but think she's winning.  Chris and I once figured out that diapers were between $.30 and .50 cents each, depending on the size (smaller diapers contain more per package than bigger diapers).  If we're basing this on cost, Lannin has been through about $2.00 in diapers in fifteen minutes.  I could figure out how many diapers per minute, but it's 3:45 am and I really can't think clearly, let alone do math.  

I think she's telling me it's my turn again.