Lips are good for kissing and talking and for biting when you are nervous.
Rub a bit of cinnamon on your wet lips instead of lip gloss. It exfoliates the skin, gives some colour and also has a plumping effect for the impression of fuller lips.
Or wet a cinnamon stick. I just keep one on my counter.
Rub a bit of baking soda on your lips to exfoliate.
Olive oil will moisten and moisturize your lips in dry weather.