the usual emergency kit (patch, spare tube, tools...) lunch box, spare clothing, spare batteries and for the last 2 month, my epipen! Yep, at 40 years old I suddenly became allergic at I still don't know what, the allergy test is scheduled in 2 weeks but now I have 3 of these thing because I kept forgeting to bring it with me. So now I have one at work, one at home and one in my front bag with a tag clearly indicating that there's an epipen there. So if I can't take it by myself any rescuer will quickly see where it is.