SuperPrepper also points out that since lipstick is waterproof and smudgeproof, it makes a great tool for leaving messages, like “Send Help,” or “No Survivors.” Or you can use it to draw still lifes of the cans of peaches stacked high in your fallout shelter. The waterproof aspect can also be used to protect items you may need from the rain, so long as you don’t mind them looking a little more rouge than usual.

Lipstick is also an effective lubricant, even if it’s not petroleum-based. When the zombies are chasing you and the engine isn’t starting, you’ll wish you’d kept the Revlon. Lastly, we’ve all seen how quickly post-apocalyptic societies develop new forms of currency and value. Goods are bartered for, which Investopedia points out is the oldest, and in many ways, most reliable form of commerce.

Given the multipurpose nature of lipstick, it would likely be a valuable commodity in a bartering economy, especially considering a lipstick container itself would be valuable for storage. Apparently you can also use an empty tube to make a flashlight.

So hunker down in your bunker and pucker up, sucker.