Now about practical things

If you type "free stuff" in the search engine and hit the "go" button, you will get myriads of links where free stuff is offered. In most cases you will be directed to the sites that offer you "miraculous" offers, such as $100, or even $500 gift cards, or yearly supply of any products in exchange for your e-mail or for your participation in a very "short" survey. In reality, you will be asked if you would like to participate in different offers, such as subscription to services, e.g. movie rentals, or journal subscription, or else. The "short" survey may as well turn into an endless list of different offers, most of which are (of course) fee-based or in the best case offer a free trial period.

You will also be getting links to sites which are obsolete, expired, or do not really offer what you are looking for. The way to go about it is to choose what exactly you want and try to prioritize your search. Here are some practical suggestions for simplifying your search and getting "what you want":

If you want to find some stuff, such as free furniture or other household items, you may wish to type "free furniture" and get the links to sites, such as www.almostfreefurniture.com/ or
the famous "craigslist"(for example newyork.craigslist.org/zip/). What is offered there is of course used stuff or if you are lucky you could get a relatively new items directly from owners, or at least owner's alerts, when they are throwing the stuff on the street.

The other type of free stuff is product samples. Try to type "free product samples" and most likely you will get the links to the sites where companies offer to mail samples of their products to your address. This will also include some department stores, such as Wallmart.

Post your question in case you need suggestions for more practical advice.