Your friends’ll think you’re absolutely insane when you start collecting sharp-edged objects. But that’s exactly what you should do the moment you’ve familiarized yourself with the area or building in which you’ll be spending the next few hours or days.
If a Slasher does target you and your friends, the first thing you’ll want to do is arm up. To do so, you’ll need to know exactly what weapons are available and where they can be found.
The best way to do that is to find those weapons ahead of time and store them in convenient, easy-to-access pockets throughout the house, cabin, school, or whatever.
Movies in which the above advise was not followed:
Too many to list here, but Halloween was notable given that Laurie was left to defend herself with a bent clothes-hanger. Shoulda stashed a hammer in the closet.