I've seriously thought that 36-hour days and 8-day weeks (3 of them just for week-ends ) might actually let me get caught up -- so we're thinking on the same lines with that one. I have no idea how I'd deal w/ 4yo twins. That's why I never had any. Life was always too full already. I hear teenagers are even worse -- so you might want to factor that into your plans and sleep schedule. Getting a jump-start on it all might not hurt. Take care.