eBay has launched another limited time coupon, coupon code PERFECTSTART gets you 20% off on purchases of $25+. The maximum discount is $50, other words, if the price is over $250, you get a flat $50 discount instead of 20%. Coupon expires May 4th in 2017.
A good place to look for ideas are the eBay Deals along with the Trending Deals (shows only 100 trending deals, less overwhelming to look at than their main deals page). There’s also a dedicated search box there that searches only the Deals, not everything else on eBay.