A Home Depot battle royale, what 3 weapons do you choose?

So you are chosen to compete against 9 other people. All ten of you are locked in a standard Home Depot, that is dark except the emergency lights above the exits. The goal is to kill one another to become the last man standing, last person alive gets to leave.

You are allowed to choose 3 pieces of equipment to aid you. Anything with a bar-code counts as one piece of equipment, for example, if you choose a nail gun, then a container of nails will be needed, so that would equal two pieces of equipment. You can use only the equipment you choose, no scalping from dead guys.

What three weapons would you choose, and what would be your strategy?