I have some emergency syringes in the glove compartments of all the cars.
But when I leave the house, this is all I carry:
Behind the PDM, inside the protective cover, are a few swabs, a spare lancing device, and some extra strips in case I run out.
The thing in the picture next to the PDM is something I made, which takes care of strips and lancing:
combined-strip-and-lancet-holder
That’s it! Nothing else.
If I am going to a place with no access to food or sugar, I will carry some form of candy.