A.M.
know what i did? i got a few of those .94 mini water bottles from walmart. you know, the ones that look like water coolers, with the sport lid? i fill them about 1/4 full with water, keep the lids loose, and freeze them, then in the morning when i make lunches, fill it with water and it serves as ice pack + drink. works GREAT. haven't had any leakage issues yet.