Most of the time, you would carry around ChapStick in your purse, pocket, etc, for your lips. But it is also good to have for other purposes.
Hopefully one of these uses will come handy for you!
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I'm a pretty avid crafter and always seem to have my hands in things that are not good for them. Lately I've been applying ChapStick to my cuticles a couple times a week before going to sleep, and it's worked miracles on the condition of my hands.