There are vegetarian hot dogs available in cans that you could take along, with some weinie buns. Also, what about making s'mores? Or heating up some jarred nacho dip to have with chips? And don't forget some soups if it rains or turns cold.
It's been 30 years since I visited the Guiness brewery in Dublin, but we got a sample of each beer they made at the time. If you go in the off-season, it may help -- we were there in January.
I think it's been proved that if a person feels healthier, they can appear more attractive. Posture? Confidence? who knows, but it works. Congrats on your brave decision. I honor you for it.
This really is a true story, it seems, and does include the recipe that Mrs. Fields was marketing through Neiman-Marcus.
http://urbanlegends.about.com/od/fooddrink/a/cookie_recipe.htm