Big-ticket tech like Sony’s Bravia 8 4K TV and Bose’s QuietComfort Headphones might be some of the more marquee deals we’re seeing during Prime Big Deal Days , but you don’t need to spend hundreds of dollars to score something great for yourself or someone else. If you’re working with a shoestring budget, or at least 50 bucks, there are plenty of discounts to take advantage of between now and October 9th. From smart security devices to board games , there are plenty of useful finds that can