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This also sounds crazy but pack a small travel toothbrush/toothpaste. I know when I feel "less than fresh" a quick toothbrush usually perks me up and makes me feel (and maybe smell) better!!!
I love this idea! I discovered these new little disposable toothbrushes with the toothpaste on them. They are little enough to keep in your pocket/purse and it's a quick way to freshen your mouth. They are about 2 dollars for four of them. I saw them at Walmart but am sure they're everywhere. It's a little bit easier than worrying about a sticky toothpaste mess....even if it is in a plastic bag.