How do I add a texture to a model in 2.82? I've been a Blender user for a few years at this point, and I finally just switched over to 2.82 after having used the version in my system's package repo for a while.  Now, I can't find gosh darn anything and I'm starting to get frustrated.
I can find the Materials window, and I can add a material.  But I've been looking for ten minutes now and I cannot for the life of me find where to add a texture.  Can someone please tell me where to find that setting, preferably with screenshots?
Update 3-6-20:  Here is a screenshot of my window.  The first response shows a tab or button that just isn't there on my interface.
(Like I said, I've been using blender for years.  I've already looked in all the places where it would actually make sense for it to be)
The texture button is here (not available in edit mode):



To add a new texture, click here:



I strongly suggest to have a look at tutorials on youtube like this one:

https://www.youtube.com/watch?v=j-ncKGhDih8