Looking for a cheap way to get lots of items? I will invite you to my lobby for 20 minutes. every gun, consumable, crafting item, book, red talon facilities and much more you add to the trunks of the cars will turn into stacks of 999 and guns will be filled to 999 ammo aswell. 
 
 
Note: You can pay for more time. $4.99 for every 10 minutes after the initial 20 minutes.