Fallout: New Vegas Message Board  

don't even need to turn on the infinite item option, just use the steps below, you will love it.

1. Go into your inventory (TAB) and switch to the item that you low on.

2. Open your console (~), use your mouse and click on that item, on the top of your screen, the item ID will appear.

3. Type in this command, "player.additem (#)", where # is the amount you need. press ENTER.

4 Vola... you have the amount of item/ammo you need.

Try it