Just dipped my toes into the Product Hunt teaser image pool, and let me tell you, it's been quite the learning curve! I used a 1080x1080 size for mine, seemed to strike a good balance. But hey, it's a bit trial and error, right? I've heard some folks swear by using JPEG Optimizer to compress image https://jpeg-optimizer.com/ efficiently – helps with keeping that crisp quality without sacrificing too much space. Definitely worth checking out! Still navigating my way around here, so if anyone else has some tips or insights, I'm all ears!