J., if they won't were diapers, see if they will wear pull-ups and tell them that they are their "big pants". They may be getting to the stage where they want to start potty training. I have also found that the cheap pull-ups from the dollar store are just as good, if not better than the name brand, and you'll save at least $4 per pack. As for the clothes, if you're at home, let them run around in the pull-ups. Who knows, maybe they'll go ahead and potty train and you won't have to worry about diapers any more for the twins. I hope this helps!