vaseline works great for me!!!
also my fave trick for lips ever is to exfoliate, get some lip balm.. apply alot all over your lips before you go to bed even going outside the natural lip line THEN grab a dry toothbrush, scrub your lips with the bristles, this will exfoliate them. Once they tingle you can stop, go to bed then when you wake up your lips will be incredibly SOFT!! then applying lipstick feels like a dream