We are going to wdw the first week of July. I know it will be hot and I don't won't to spend my whole time on lines buying drinks, so how many bottles of water should we take? 2 adults, a 4 & 7 yr old. Will 1 sport bottle each (16 or 24 oz) be enough. Also looking for fanny bags for the kids to carry there own, I hope! I also don't want to have sore arms with all the other junk I will be carrying. (camera, suntun lotion, wallet, misting fan, etc) I just brought the medium size ameribag for everything. (I don't like totes, suffer from tendinitties) 2 weeks till we leave.