I have been finding that food is my heaviest carry. I eat ALOT when I am at work. We don't get lunch breaks but are given a free prison style meal to consume while working,, alot of the guys don't eat theirs ( i dont blame them) but I for one do not turn down free food, no matter how poor the quality, so I take 1st shifts left overs and whatever the guys on 2nd are not going to eat. I pack snack foods like trail mix or peanuts as well as instant breakfast powder(I don't mix it with milk as suggested, I just poor it in my mouth and swallow it with water) and bring a couple of sandwiches. I also bring some supplements with me to ingest...Anything that won't leak into my bag, isn't too heavy and fits inside of it....most of whatever bag I bring is usually full of food and not much else. We can't take any bags into our pods so I then remove it all, use my clipboard as a tray, fill my arms full of it, and carry it to my station. Normally I don't drink anything other than water and I have access to that at my station.