Cree 120 lumen led flashlight, esee3, composition book and pen (for those late night eppiphanies), .40 s&w sw40e (nothing fancy, but it's never failed me), tv remote, cell phone charger, phone.
Alarm clock
Cordless phone
Midland Weather Alert radio
AcuRite Professional Digital Weather Station w/ Weather Ticker/Forecast/Temperature/ Humidity/Wind Speed & Direction, set up for low temp/wind chill and high wind speed alarms.
220 lumen adjustable focus tac light
and a low output tap on/off night light.
Of course you did say what is on it, not "in" it.
In it, is my trusty 11 year old Taurus PT-940 .40 cal with 2 back up mags.