Everyone is different but here are what gets me through the long runs.
Body Glide - anything over 6 miles and I need this for my armpits and feet to prevent rashes and blisters.
Bandaids - cover your nipples, seriously.
Hydration Pack - Look into them at your local running store, training for long runs are necessary, and there are not any hydration stations along the way. I prefer the camelpack, but the hydration belts work too.
Change your diet if you can. Eliminate Fast Food and sugars from your diet. This gives me more energy, I like to eat alot of green vegtables and whole wheat carbs for energy and before long runs.
station taxi