Thought of one today - an elderly neighbor years ago kept a cardboard salt shaker she had ocne gotten when she bought salt in her purse. After the salt was basically gone, she filled it with a sand/salt mixture, and kept in her purse so if she was out somewhere and encountered slippery sidewalks - which happens often around here - she could sprinkle sand/salt and wait a minute and then pass more safely!

And with the size purses that are currently fashionable, everyone could certainly add that to their bag!