I currently have no real "BOB" however in my PSK I keep 2 Advil, 2 Tylenol and 2 Bayer. If I get a headache I am going to "tuff it out" and save those meds for more important stuff like reducing fever and assisting with a possible heart attack. The idea is that the Tylenol and Advil would be used as fever reducers and the Bayer is in case someone I'm with has a heart attack.