The top categories with the most free products are:
You will notice some differences between AI and AFA in which items are free. For example, AFA will sometimes have free products from Pet Supplies- but pet items are rarely free in AI. Conversely, Baby items like strollers can often be free in AI but will almost always have an ETV in AFA.
Due to these differences it is extremely important to double-check the ETV on an item before you click request, because even items that are typically free can sometimes show up with an ETV. You can also check after ordering on the Orders tab. The ETV is locked in when you request an item and cannot be changed later.