I used to just keep some lip balm on me at all times and leave it at that. But now that I am getting older (cue pity party) I've noticed that the natural tint to my lips is fading (as I had heard that it would... there is a reason why old ladies wear so much lipstick)... so now I try to never be caught with completely bare lips - especially in photos! But I still manage to keep it pretty unfussy as you will see....
You can see that my loyalties are quite strong with Stila's Lip Glaze... these are my favorite and I highly recommend the Holiday 10 pack that they come out with each winter... it's an inexpensive way to get a lot of colors... #1, #3 & #4 are all from the Winter '11 10 pack.