I always carry my victorinox Champ. Even to school. I tried not too but I didnt have anything to peel my orange with. Anyway as soon as I need a knife my right hand automatically goes to my back-right hip and when it is not there... Basically just irritating. As well when I am cooking (Its the only cooking knife I've got-its the only knife I brought with me from portugal) I use it. Which I do strait from school