I've been using a variation of the condom line in many instances since the film, and it is where I got it from. For example, I'm going into the forest for a half-hour walk at dusk. I'm going to bring a flashlight (torch for you UK folks) with me. My rational: better have it and not need it, than need it and not have it. It's become one of my go-to sayings.
I seriously enjoyed rewatching this movie just now. It is truly worthy of a spot somewhere in the pantheon of Alien and Predator lore. I was amazed at just how similar it is to Prometheus, in so many ways.