I've always included my own kids as part of my numbers in my daycare and always super excited when I was able to bring on another to fill their spot while at school.

Yikes playfelt- your brave I'm not sure I would take them on that young. Your right, that is a lot of work at 4- 6 months.
I've only ever taken them from 1 year - and been crazy busy in winter getting them all dressed but, just did it one at a time and i'd be working up quite the sweat. It was my winter work out!!
I've never taken into consideration the extra work done at times and just considered it part of my job.