This is what i carry around on a day-to-daybasis since i became an intern. I would most definitely need to have my "medical weapons"-- stethoscope (which we also call as the statuscope) and BP app. My cellphone ofcourse is a necessity to be able to contact and be contacted by everyone and anyone. A carabiner which, if it could, would be used to carry everything from micropore tape to bandage scissors to a stapler.Everything else are practical stuff like umbrella, house keys and money. Sometimes i would carry around my "security blanket"-- a small medical book.