Sure, I\'ll play.
Thing: my multi-tool, which includes knife, small saw, etc. and has a magnifying glass. The magnifying glass in particular will be helpful since it can be used to start fire.
Food: Hard call here, since I\'m sure I\'d be doing a lot of foraging and fishing, but if it\'s an unlimited supply, I\'d go with either a good fortified cereal or trail mix (makes sure to cover all vitamins needed).
Person: My darling girlfriend. Not only is she the only person that I could stand to be around for eternity, she\'s also quite knowledgeable in herbalism, which would come in handy for minor remedies and knowing what other plants are edible.