I tried one AI2 and it didn't work for us at all.  I have several AIOs and they don't last us more than 2 hours.  Have you tried putting an insert on top of the AIOs or AI2s?  Sometimes adding an extra layer would help.  I prefer using pockets so I can stuff them as much or as little as needed.  You can pre-stuff the pockets and have them ready to go for your DH!  Good luck finding the right solution for your family!

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Angie

Mom to Brady (4.04) and another little bun in the oven EDD 9.14.06