Hunger Games @ Home Depot

So let's say that you and 9 other people are trapped inside a Home Depot with no power and your only objective is to survive. Only one person is making it out alive. You get your choice of any 3 things sold in home depot to help you survive, and they each have to be things with their own bar codes, for example nail gun/nails/air compressor are 3 separate things. 

What would you choose?