Maria Diaz/ZDNET ZDNET key takeaways You can get a discounted Prime membership through Amazon's Young Adult program.  Qualifications include proof of age or college student status. Sign up in time for the upcoming Prime Day sales event.  We all know things are expensive right now -- even the essentials. And if you're a young student, you probably feel the economic climate's stress even more. While Amazon Prime is certainly not a necessity, it can be quite useful thanks to fast, free shipping, discounts on groceries, and, of course, access to Amazon Prime Day deals.  Also:  Amazon confirmed Prime Day 2026 is coming earlier.…