She probably had a constant supply in her purse (without which she would never travel, just like Queen Elizabeth II). They shared her pocketbook along with a plastic rain bonnet, two half-sticks of Wrigley's Spearmint gum. some Fenamints (some of which escaped the container and are rolling around on the bottom of her bag), two pens (one hasn't worked in years), a small, spiral notebook, her wallet, a pair of gloves, keys, a little tin of Bayer, and bunched-up kleenex.
Gerard