We have seen some type of wi-fi detecting shirt before, and now you’ll have it in a baseball cap. The cap will detect the nearest Wi-Fi signal and find you the hotspot for you to go online with your laptop/cell phone. You will also get to see the signal strength via the indicator that will dynamically displayed. Though you might have to remove the cap from your head to see the indicator, but at least it can help you find the best spot for your online activity. This Baseball Cap Wi-Fi Detector is powered by couple of CR2032 batteries. Available for GBP 13 (about $21) at ThumbUpUK.