Did you shop Prime Day? This week, we talk about what deals were worth it — and how prices in the UK compare to the US. We’ve also got news on free Windows 10 security updates, Firefox’s free VPN, and a big question: can you really trust Reddit’s new AI? Plus, are hybrid cars as green as we’ve been told, or is it time for a reality check? Facebook faces privacy backlash (again), the classic Casio calculator watch is back, and we’ve got some fun picks in streaming to wrap it up.