Handy tools in my bag (literally)

My Mary Poppins bag is much smaller these days. In fact, I'm trying to consolidate to a belt bag (worn over my neck).  Two (of the many) things in my Mary Poppins bag these days that are super helpful are: 

This slim wallet ~

And this pill case ~ 

With all the compartments, I can keep several medications easily available, from children's benadryl to tylenol, Tums, or whatever. (It comes with stickers to label each compartment. Or a Sharpie works, too.) 

Any other recommendations?