I found this single-use lipstick applicator in my wife’s purse. I didn’t test the product to see how well it works, but it looks like a nice alternative to carrying around a quick-to-melt tube of lipstick, especially in Arizona. (For the record, I carry neither purses nor quick-to-melt tubes, so my impressions here are merely superficial.)

Update: Carrie just tested this, and it worked great!