You know all those giant trees that you would randomly come across every now and then in your world? Well, if you find one, instead of walking along, go down into the tree. Most people do this, but I've seen one or two players that had no idea why the tree was so big so they just walked past it. Once you go down, you'll eventually find a room with a chest and some living wood furniture. In the chest, there will most likely be a Living Wood Wand, among other things. These aren't that useful, though, unless you're planning on making a giant tree yourself. If you keep going down, you might fall into a cave. Here, you will most likely find more chests.

If you go into caves, you will probably find some water, right? Well, sometimes, if you look at the bottom of the water you will find a chest. You might think that this doesn't happen that often. Well, it does for me, anyway. Every cave that I've been to has had an underwater chest. So, make sure you sneak a peak at the bottom of the water you see in caves and you're bound to find at least one or two chests. Another reason why water is awesome.

Once you've gotten deep enough in caves, you'll probably see rooms with several things in them. These hidden rooms will give you several things. For one, these rooms have chests. Secondly, these rooms have furniture you can take, such as bookcases, chandeliers and much more. You'll usually find some potions, coins, torches, bombs or some sort of cool accessory, like the Hermes Boots. So, you can make cool houses with the fancy furniture you get and you can get cool stuff from chests.

Thanks for reading my guide. If you have any tips on how to find chests, put them in the comment below and I might put it in my guide. If I choose your comment, though, then I'll delete it. Sorry, but I have to do that, so don't complain, please. Also, I got a link from my friend @nnoying that showed every single chest to date and where it's usually located. So, the link's below and I'll see you later.

http://terraria.gamepedia.com/Chest