Amazon Prime Young Adult (18-24) & Student: Get Free 6 Month Prime Trial; Grubhub+, Video Discounts & More

[Update 7/1/25: Aside from the regular 6 months of free Prime member, Amazon has added a special for Young Adults (ages 18-24) to get 5% back on all Amazon purchases, up to $500 per calendar year. On Prime Day 2025 (July 8-11) Young Adults will get an increased rate of 10% back. We wrote more in this dedicated post.]