|I never bought AIOs with my son, but I would like to have some for going out and for when my daughter is at day care. She will only be there one day a week until she's 5 months, and then full time.
I tried to have my son continue in cd when he started daycare at 8 months, but it didn't last more than a few months. The biggest issue was the poopy diapers. His sitter put them in a separate bag, but not rinsed. I would take them home, clean them up and put them in the pail. Sometimes it would get left in the car for a day. Yuk. After a long days work, cleaning up old poop diapers of a kid eating solids is less than fun. So, we just did cd at home after he was a year old.
My daughter still only has bf poop - no rinsing, no problem. I think AIOs would make things easier for the sitter, although it isn't a must.
How many AIOs have you bought/feel is a good number to have around? They are pretty expensive, so I'm not planning to buy a full days worth of diapers...