Costco has 2 new weapons in its battle against Amazon (COST)

Costco is rolling out new delivery options in an effort to take on Amazon. 
On Thursday, the retailer announced that Costco Grocery will offer two-day delivery on nonperishable items, like cookies, cereal, and canned foods, starting this week. Delivery will be free on orders more than $75. 
Additionally, the retailer partnered with Instacart for same-day delivery of all online grocery items. The option to have online groceries delivered from Costco in as little as an hour is