There are many devices, gadgets and apps available to help diabetics manage their blood glucose:
                                       an insulin pump controller
                                       an insulin pod
                                       an insulin vial and syringe
                                       a constant glucose monitor receiver
                                       a constant glucose sensor 
                                       a 12 step glucagon emergency kit
                                       a blood glucose meter, test strips, lancer and lancets
                                       ketone test strips
                                       batteries
                                       quick acting glucose
                                       a scale to weigh your food and a book to look up carbohydrates
                                                                        
                                       
                          It is a lot of stuff to carry around and it takes a lot of time to keep track of everything